Windows Task Manager: The Complete Guide

Process tab of the Windows 10 task manager

Windows Task Manager is a powerful tool that contains useful information, ranging from the overall use of your system's resources to detailed statistics about each process. This guide explains each feature and technical term in the task manager.

This article focuses on the Windows 10 task manager, although this also applies to a great extent for Windows 7. Microsoft has significantly improved the task manager since the release of Windows 7.

How to launch the task manager

Option to launch Task Manager from the Windows 10 taskbar

Windows offers several ways to launch the task manager. Press Ctrl + Shift + Esc to open the Task Manager with a keyboard shortcut, or right-click on the Windows taskbar and select "Task Manager."

You can also press Ctrl + Alt + Delete, then click "Task Manager" on the screen that appears or look for the task manager shortcut in your Start menu.

The simple view

Simplified View of Task Manager Application Management

The first time you start the task manager, you will see a small, simple window. This window lists the visible applications running on your desktop, excluding applications in the background. You can select an application here and click "End Task" to close it. This is useful if an application does not respond – that is, if it is frozen – and you can not close it in the usual way.

You can also right-click on an application in this window to access more options:

Switch to: Switch to the application window, making it appear in the foreground of your desktop and highlighting it. This is useful if you do not know which window is associated with which application.
Final task: Finish the process. It works like the "End Task" button.
Perform a new task: Open the Create New Task window, where you can specify a program, folder, document, or address of a Web site. Windows will open it next.
Always on top: Make sure the Task Manager window is always "above" other windows on your desktop, so you can see it at any time.
Open file location: Open a file explorer window showing the location of the program's .exe file.
Search online: Perform a search on Bing for the name of the program application and the name of the file. This will help you see exactly what the program is and what it does.
properties: Open the Properties window of the .exe file of the program. Here you can change the compatibility options and see the version number of the program, for example.

Task Manager Notification Area Icon

When Task Manager is open, a Task Manager icon appears in the notification area. This shows you how much CPU time (CPU) Resources are currently being used on your system and you can hover over to see memory, disk and network usage. This is an easy way to monitor the CPU usage of your computer.

To see the system tray icon without Task Manager appearing in your taskbar, click Options> Hide on Minimize in the full Task Manager interface and reduce the corresponding window.

The task manager tabs explained

Viewing the use of application resources in the Windows Task Manager

To see the more advanced tools of the Task Manager, click "More Details" at the bottom of the simple viewport. The complete tabbed interface appears. The task manager will remember your preferences and later open the more advanced view. If you want to return to the simple view, click on "Less details".

When more details are selected, the task manager includes the following tabs:

The process: List of running applications and background processes on your system, as well as information about CPU, memory, disk, network, GPU, and CPU usage. Other resources.
Performance: Real-time graphics that show the total use of CPU, memory, disk, network, and graphics processor resources for your system. You will find many other details here, too, in your computer's directory. IP adress the model names of the CPU and GPU on your computer.
Application History: Information about the amount of CPU and network resources used by the applications for your current user account. This only applies to new Universal Windows Platform (UWP) applications, that is, Store apps– and not traditional Windows desktop applications (Win32 applications.)
Start: List of your startup programs, ie the applications that Windows automatically starts when you log in to your user account. You can disable startup programs from here, although you can also do this from Settings> Applications> Startup.
users: The user accounts currently connected to your PC, the amount of resources they use and the applications they use.
Details: More detailed information about the processes running on your system. This is essentially the traditional "Process" tab of the Windows 7 Task Manager.
Services: System Services Management. These are the same information you will find in services.msc, the service management console.

Manage processes

Applications and background processes in the task manager

The Process tab displays a complete list of processes running on your system. If you sort by name, the list is divided into three categories. The Apps group displays the same list of running applications as you see in the simplified view "Less Details." The other two categories are background processes and Windows processes. They indicate the processes that do not appear in the simplified view of the task manager.

For example, tools such as Dropbox, your antivirus program, background update processes, and hardware utilities with notification area icons (system tray) appear in the process list. background. Windows processes include various processes that are part of the Windows operating system, although some of them appear under "Background Process" instead for some reason.

Option to restart Windows Explorer in Task Manager

You can right-click a process to see what actions you can perform. The options you will see in the context menu are:

Develop: Some apps, like Google Chrome, have several processes grouped here. Other applications have multiple windows being part of the same process. You can select expand, double-click the process, or click the arrow to its left to see the entire process group individually. This option appears only when you right-click a group.
Collapse: Reduce a developed group.
Final task: Finish the process. You can also click the "End Task" button below the list.
To restart: This option appears only when you right-click on Windows Explorer. It allows you to restart explorer.exe instead of just finishing the task. In earlier versions of Windows, you had to terminate the Explorer.exe task and manually launch it to troubleshoot problems with the Windows desktop, taskbar, or Start menu. Now you can just use this restart option.
Resource values: Allows you to choose whether you want to see the percentage or specific values ​​for memory, disk, and network. In other words, you can choose to see the precise amount of memory in MB or the percentage of memory used by the applications in your system.
Create a dump file: This is a debugging tool for programmers. It captures a snapshot of the program's memory and saves it to disk.
Go to details: Go to the Details tab process for more detailed technical information.
Open file location: Open the file explorer with the .exe file of the selected process.
Search online: Find the name of the process on Bing.
properties: Display the Properties window of the .exe file associated with the process.

You should not terminate tasks unless you know what the task is doing. Many of these tasks are important background processes for Windows itself. They often have confusing names, and you may need to search the web to find out what they are doing. We have a set series explaining what various processes do, from conhost.exe at wsappx.

Columns Available in the Task Manager Process Tab

This tab also displays detailed information about each process and their combined use of resources. You can right-click the headers at the top of the list and choose the columns you want to see. The values ​​in each column are color-coded, and a darker (or red) orange color indicates a greater use of resources.

You can click on a column to sort it. For example, click the CPU column to see the current processes sorted by CPU usage, with the largest processor attributes at the top. The top of the column also indicates the total resource utilization of all processes in your system. Drag and drop the columns to rearrange them. Available columns are:

Type: The process category, ie application, background process, or Windows process.
Status: If a program seems to be frozen, "No answer" will appear here. Programs sometimes begin to react after a while and sometimes remain frozen. If Windows has suspended a program to save energy, a green sheet will appear in this column. Modern UWP applications can be suspended to save power, and Windows can also suspend traditional desktop applications.
Editor: Name of the program publisher. For example, Chrome displays "Google Inc." and Microsoft Word displays "Microsoft Corporation."
PID: The identification number of the process that Windows associated with the process. The process ID can be used by some system functions or utilities. Windows assigns a unique process ID each time it launches a program. The process ID can distinguish multiple running processes if multiple instances of the same program are running.
Name of the process: The name of the process file. For example, the file explorer is explorer.exe, Microsoft Word is WINWORD.EXE, and the task manager itself is Taskmgr.exe.
Command line: The complete command line used to start the process. This tells you the full path of the process .exe file (for example, "C: WINDOWS Explorer.EXE"), as well as any command line options used to launch the program.
CPU: Processor utilization of the processor, displayed as a percentage of total available CPU resources.
Memory: The amount of physical work memory in your system currently used by the process, displayed in MB or GB.
Disk: The disk activity generated by a process, displayed in MB / s. If a process does not read or write to disk for the moment, it will display 0 MB / s.
Network: The use of the network of a process on the current main network, displayed in Mbps.
GPU: Processor CPU resources used by a process, displayed as a percentage of available GPU resources.
GPU engine: The GPU device and the engine used by a process. If you have multiple GPUs in your system, it will tell you which GPU is used by a process. See the Performance tab to see which number ("GPU 0" or "GPU 1" is associated with which physical GPU.
Power used: Consumed energy consumption of a process, taking into account the current activity of the processor, disk and graphics processor. For example, it might say "Very low" if a process does not use a lot of resources or "Very high" if a process uses a lot of resources. If it is high, it means that it uses more electricity and reduces the life of your battery if you have a laptop.
Trend in the use of food: The estimated impact on energy consumption over time. The Power Utilization column only shows the current power usage, but this column tracks the use of power over time. For example, if a program sometimes consumes a lot of energy, but not much at present, it may say "Very low" in the Energy consumption column and "High" or "Moderate" in the Trend of energy consumption column. .

When you right-click the headers, you will also see a "Values ​​for the resource" menu. This is the same option that appears when you right-click an individual process. Whether you access this option or not by right-clicking on an individual process, the appearance of all processes in the list will always be changed.

Task Manager Menu Options

The View menu in the task manager

The Task Manager menu bar also contains some useful options:

file> Perform a new task: Launch a program, folder, document, or network resource by providing its address. You can also check the "Create this task with administrator privileges" check box to start the program as an administrator.
options> Always on top: The Task Manager window will always be on top of other windows when this option is enabled.
options> Minimize on Use: Task Manager will be minimized when you right-click a process and select "Switch to". Despite its odd name, that's all this option does.
options> Hide when minimizedNote: The task manager remains active in the notification area (system tray) when you click the Minimize button if you enable this option.
View> Refresh now: Refreshes the data displayed in the task manager immediately.
View> Update speedChoose how often to update the data displayed in Task Manager: High, Medium, Low or Paused. When Pause is selected, the data is not updated until you select a higher frequency and click "Refresh Now".
View> Group by typeWhen this option is enabled, Processes on the Processes tab are grouped into three categories: Applications, Background Processes, and Windows Processes. If this option is disabled, they appear mixed in the list.
View> Expand all: Expand all process groups in the list. For example, Google Chrome uses several processes, which are combined in a "Google Chrome" group. You can also develop individual process groups by clicking the arrow to the left of their name.
View> Reduce all: Reduces all process groups in the list. For example, all Google Chrome processes will simply be displayed in the Chrome category.

Viewing performance information

CPU usage statistics under the Task Manager's Performance tab

The Performance tab displays real-time graphs illustrating the use of system resources such as processor, memory, disk, network, and graphics processor. If you have multiple disks, network devices, or GPUs, you can see them all separately.

You will see small graphics in the left pane and you can click an option to display a larger graphic in the right pane. The graph shows the use of resources over the last 60 seconds.

In addition to resource information, the Performance page displays information about the hardware in your system. In addition to the use of resources, here are some elements that the different panels display:

CPU: The name and model number of your CPU, its speed, the number of cores it contains, and whether hardware virtualization features are enabled and available. It also says "the availability, "That's the time your system has been running since it was last started.
Memory: How much RAM do you have, what is its speed and how many RAM slots on your motherboard are used? You can also see the amount of memory currently used in your memory. Windows calls this the "watch". This data will be ready and waiting if your system needs it, but Windows will automatically flush the cached data and free up space if it needs more memory for another task.
Disk: The name and model number of your disk drive, its size, and its current read and write speeds.
Wi-Fi or Ethernet: Windows displays here the name of the network adapter and its IP addresses (IPv4 and IPv6 addresses). For Wi-Fi connections, you can also see the Wi-Fi standard used on the current connection, for example 802.11ac.
GPU: The GPU pane displays separate graphics for different types of activities, such as 3D / video encoding or decoding. The GPU has its own built-in memory, so it also shows the use of GPU memory. You can also see the name and model number of your GPU here and the version of the graphics driver it uses. You can monitor the use of the graphics processor directly from the task manager without third-party software.

Minimal overlay of floating processor usage in task manager

You can also turn this into a smaller window if you want to see it on the screen at any time. Just double-click anywhere in the empty space in the right pane to display a floating window that is always visible with this graphic. You can also right-click on the chart and select "Chart Summary Display" to activate this mode.

Windows 10 Resource Monitor showing CPU usage by the CPU

The "Open Resource Monitor" button at the bottom of the window opens the Resource Monitoring Tool, which provides more detailed information about the use of the graphics processor, memory, disks, and network by running processes.

History of the board application

The Application History tab in Windows 10 Task Manager

The Application History tab applies only to Universal Windows Platform (UWP) applications. It does not display information about traditional Windows desktop applications. Most users do not find it very useful.

At the top of the window, you will see the date that Windows started collecting resource usage data. The list lists the UWP applications, CPU time, and network activity generated by the application since that date. You can right-click on the headers here to activate some additional options to better understand the network activity:

CPU time: The amount of CPU time used by the program during this time.
Network: Total amount of data transferred over the network by the program during this period.
Measured network: The amount of data transferred over measured networks. You can define a network as measured to save data on it. This option is for networks on which you have limited data, such as a mobile network to which you are connected.
Tile Updates: The amount of data downloaded by the program to display the updated dynamic thumbnails in the Windows 10 Start menu.
Network not measured: Quantity of data transferred on unmeasured networks.
Downloads: The amount of data downloaded by the program on all networks.
Uploads: The amount of data downloaded by the program on all networks.

Control of startup applications

Task Manager Startup Manager Tab

The Startup tab represents the boot program manager built into Windows 10. It lists all the applications that Windows automatically starts for your current user account. For example, programs in your Startup folder and programs configured to start in the Windows registry both appear here.

To disable a startup program, right-click on it and select "Disable" or select it and click the "Disable" button. To reactivate it, click on the "Activate" option that appears here instead. You can also use settings> applications> startup interface manage startup programs.

At the top right of the window you will see a "Last time of the BIOS"On some systems. This indicates the time it takes for your BIOS (or UEFI firmware) to initialize your hardware when you last booted your PC. This will not appear on all systems. You will not see it if the BIOS of your PC does not report this time to Windows.

As usual, you can right-click on the headers and activate additional columns. The columns are:

first name: The name of the program.
Editor: Name of the program publisher.
Status: "On" appears here if the program starts automatically when you log in. "Disabled" appears here if you have disabled the startup task.
Startup impact: Estimated amount of CPU and disk resources used by the program at startup. Windows measures and follows this in the background. A light program will show "Low" and a heavy program, "High". Disabled programs will show "None". You can further accelerate the startup process by disabling programs that have a "High" impact instead of disabling them. "Low impact.
Startup type: This indicates whether the program is started because of a registry entry ("Registry") or because it is in your startup folder ("Folder").
I / O disk at startup: Disk activity performed by the program on startup, in MB. Windows measures and records each startup.
CPU at startup: The amount of CPU time used by a program on startup, in ms. Windows measures and saves this at startup.
Run now: The word "Running" appears here if a startup program is running. If this column appears as a program entry, it has stopped or you have closed it yourself.
Disabled time: For startup programs that you have disabled, the date and time of deactivation of a program appear here
Command line: This displays the complete command line with which the startup program is started, including command line options.

User Verification

Multiple users in the Task Manager Users tab

The Users tab displays a list of connected users and their current processes. If you are the only person connected to your Windows PC, only your user account appears here. If other people logged in and locked their sessions without logging out, you will also see that these locked sessions appear as "Disconnected." It also tells you the CPU, memory, disk, network, and other system resources used by the processes. running under each Windows user account.

You can disconnect a user account by right-clicking on it and selecting "Disconnect" or forcing logoff by clicking on it and selecting "Disconnect". The Disconnect option ends the connection to the desktop, but the programs continue to run and the user can reconnect, for example by locking a desktop session. The Sign Off option terminates all processes, such as logging out of Windows.

You can also manage processes from another user account from here if you want to complete a task belonging to another user account that is running.

If you right-click the headers, the available columns are:

ID: Each connected user account has its own session ID number. The "0" session is reserved for system services, while other applications can create their own user accounts. You do not usually need to know this number, so it is hidden by default.
Session: The type of session is. For example, it will say "Console" if you access it on your local system. This is primarily useful for server systems running remote desktops.
Client name: Name of the remote client system accessing the session, if accessible remotely.
Status: State of the session. For example, if a user's session is locked, the status will show "Disconnected".
CPU: Total CPU used by the user's processes.
Memory: Total memory used by the user processes.
Disk: Total disk activity associated with user processes.
Network: Total network activity from the user processes.

Manage detailed processes

Shortcut menu options for a process in the Task Manager Details tab

This is the most detailed task manager pane. This looks like the Processes tab, but it provides more information and displays the processes of all the user accounts in your system. If you have used the Windows 7 Task Manager, this will sound familiar. it's the same information as the Windows 7 Process tab.

You can right-click on the processes here to access additional options:

Final task: Finish the process. This option is the same as that of the Normal Process tab.
Finish the tree: Ends the process and all processes created by the process.
Set the priority: Set a priority for the process: low, below normal, normal, higher than normal, high, and real-time. Processes start with normal priority. A lower priority is ideal for background processes, and a higher priority is ideal for office processes. However, Microsoft recommend against play with priority in real time.
Define affinity: Defines the processor affinity of a process, that is, on which processor a process is running. By default, processes run on all processors on your system. You can use it to limit a process to a particular processor. For example, this is sometimes useful for old games and other programs that assume you only have one processor. Even if you have only one processor on your computer, each kernel appears as a separate processor.
Analyze the waiting chain: See what threads in the process are waiting. Cela vous indique les processus et les threads qui attendent d'utiliser une ressource utilisée par un autre processus et constitue un outil de débogage utile pour permettre aux programmeurs de diagnostiquer les blocages.
Virtualisation UAC: Activer ou désactiver la virtualisation du contrôle de compte d'utilisateur pour un processus. Cette fonctionnalité résout les applications nécessitant un accès administrateur en virtualisant leur accès aux fichiers système, en redirigeant leur accès aux fichiers et au registre vers d'autres dossiers. Il est principalement utilisé par les programmes plus anciens, par exemple les programmes de l’ère Windows XP, qui n’étaient pas conçus pour les versions modernes de Windows. C'est une option de débogage pour les développeurs et vous ne devriez pas avoir besoin de la changer.
Créer un fichier de vidage: Capturer un instantané de la mémoire du programme et l’enregistrer sur le disque. C'est un outil de débogage utile pour les programmeurs.
Lieu de fichier ouvert: Ouvrez une fenêtre de l’explorateur de fichiers affichant le fichier exécutable du processus.
Chercher online: Effectuez une recherche sur Bing pour connaître le nom du processus.
Propriétés: Affiche la fenêtre de propriétés du fichier .exe du processus.
Aller au service (s): Affiche les services associés au processus dans l’onglet Services. Ceci est particulièrement utile pour les processus svchost.exe. Les services seront mis en évidence.

Sélection des colonnes pour l'onglet Détails du Gestionnaire des tâches Windows

Si vous cliquez avec le bouton droit de la souris sur les en-têtes et que vous sélectionnez «Afficher les colonnes», vous verrez une liste d’informations beaucoup plus longue que vous pouvez afficher ici, y compris de nombreuses options qui ne sont pas disponibles dans l’onglet Processus.

Voici ce que chaque colonne possible signifie:

Nom du paquet: Pour les applications de la plate-forme Windows universelle (UWP), ceci affiche le nom du package d'application d'où provient le processus. Pour les autres applications, cette colonne est vide. Les applications UWP sont généralement distribuées via le Microsoft Store.
PID: Le numéro d’identification unique associé à ce processus. Ceci est associé au processus et non au programme. Par exemple, si vous fermez et rouvrez un programme, le nouveau processus du programme aura un nouveau numéro d'identification.
Statut: Ceci indique si le processus est en cours d'exécution ou suspendu pour économiser de l'énergie. Windows 10 «suspend» toujours les applications UWP que vous n’utilisez pas pour économiser les ressources système. Vous pouvez également contrôler si Windows 10 suspend les processus de bureau traditionnels.
Nom d'utilisateur: Le nom du compte utilisateur exécutant le processus. Vous verrez souvent des noms de compte d'utilisateur système ici, tels que SYSTEM et LOCAL SERVICE.
ID de session: Le numéro unique associé à la session utilisateur exécutant le processus. Ce numéro est identique à celui indiqué pour un utilisateur dans l'onglet Utilisateurs.
ID d'objet de travail: "L'objet de travail dans lequel le processus est en cours d'exécution". Objets de travail sont un moyen de regrouper les processus afin qu'ils puissent être gérés en tant que groupe.
CPU: Pourcentage des ressources de la CPU que le processus utilise actuellement sur toutes les CPU. Si rien d'autre n'utilise le temps CPU, Windows montrera le processus inactif du système en l'utilisant ici. En d’autres termes, si le processus d’inactivité du système utilise 90% des ressources de votre CPU, cela signifie que les autres processus de votre système utilisent un taux combiné de 10% et qu’il était inactif 90% du temps.
Temps de calcul: Temps de traitement total (en secondes) utilisé par un processus depuis le début de son exécution. Si un processus se ferme et redémarre, il sera réinitialisé. C’est un bon moyen de repérer les processus gourmands en ressources processeur qui sont actuellement au ralenti.
Cycle: Pourcentage des cycles de traitement actuellement utilisés par le processus sur tous les processeurs. On ne sait pas exactement en quoi cela diffère de la colonne CPU, car la documentation de Microsoft n’explique pas cela. Toutefois, les chiffres de cette colonne sont généralement assez similaires à ceux de la colonne CPU. Il est donc probable qu’une information similaire soit mesurée différemment.
Ensemble de travail (mémoire): Quantité de mémoire physique utilisée par le processus.
Pic de travail (mémoire): Quantité maximale de mémoire physique utilisée par le processus.
Delta de travail (mémoire): La modification de la mémoire du groupe de travail depuis la dernière actualisation des données ici.
Mémoire (groupe de travail privé actif): Quantité de mémoire physique utilisée par le processus qui ne peut pas être utilisée par d’autres processus. Les processus mettent fréquemment en cache certaines données pour faire un meilleur usage de votre RAM, mais peut rapidement céder cet espace mémoire si un autre processus en a besoin. Cette colonne exclut les données des processus UWP suspendus.
Mémoire (ensemble de travail privé): Quantité de mémoire physique utilisée par le processus qui ne peut pas être utilisée par d’autres processus. Cette colonne n'exclut pas les données des processus UWP suspendus.
Mémoire (ensemble de travail partagé): Quantité de mémoire physique utilisée par le processus pouvant être utilisée par d'autres processus si nécessaire.
Taille de validation: Quantité de mémoire virtuelle réservée par Windows pour le processus.
Piscine paginée: Quantité de mémoire noyau paginable allouée par le noyau Windows ou les pilotes pour ce processus. Le système d'exploitation peut déplacer ces données vers le fichier d'échange quand c'est nécessaire.
Piscine NP: Quantité de mémoire noyau non paginable allouée par le noyau Windows ou les pilotes pour ce processus. Le système d’exploitation ne peut pas déplacer ces données dans le fichier de pagination.
Défauts de page: Le nombre de défauts de page générés par le processus depuis le début de son exécution. C’est ce qui se produit lorsqu’un programme tente d’accéder à la mémoire qui ne lui est pas allouée actuellement et qui est normal.
PF Delta: Modification du nombre de défauts de page depuis la dernière actualisation.
Priorité de base: La priorité du processus – par exemple, il peut s’agir de Basse, Normale ou Haute. Windows donne la priorité aux processus de planification avec des priorités plus élevées. Les tâches d’arrière-plan du système qui ne sont pas urgentes peuvent avoir une faible priorité par rapport aux processus de programme de bureau, par exemple.
Poignées: Le nombre actuel de descripteurs dans la table des objets du processus. Les poignées représentent les ressources système telles que les fichiers, les clés de registre et les threads.
Les fils: Le nombre de threads actifs dans un processus. Chaque processus exécute un ou plusieurs threads et Windows leur alloue du temps processeur. Les threads d'un processus partagent la mémoire.
Objets utilisateur: Le nombre de “Objets du gestionnaire de fenêtres”Utilisé par le processus. Cela inclut les fenêtres, les menus et les curseurs.
Objets GDI: Le nombre de Objets d'interface graphique utilisé par le processus. Ceux-ci sont utilisés pour dessiner l'interface utilisateur.
I / O lit: Nombre d'opérations de lecture effectuées par le processus depuis son démarrage. I / O signifie Entrée / Sortie. Cela inclut les entrées / sorties de fichiers, de réseaux et de périphériques.
I / O écrit: Nombre d'opérations d'écriture effectuées par le processus depuis son démarrage.
I / O autre: Nombre d'opérations sans lecture ni écriture effectuées par le processus depuis son démarrage. Par exemple, cela inclut les fonctions de contrôle.
I / O lire les octets: Le nombre total d'octets lus par le processus depuis son démarrage.
I/O write bytes: The total number of bytes written by the process since it started.
I/O other bytes: The total number of bytes used in non-read and non-write I/O operations since the process started.
Image path name: The full path to the process’s executable file.
Command line: The exact command line the process was launched with, including the executable file and any command-line arguments.
Operating system context: The minimum operating system the program is compatible with if any information is included in the application’s manifest file. For example, some applications might say “Windows Vista,” some “Windows 7,” and others “Windows 8.1”. Most won’t display anything in this column at all.
Platform: Whether this is a 32-bit or 64-bit process.
Elevated: Whether the process is running in elevated mode—in other words, with Administrator—permissions or not. You will see either “No” or “Yes” for each process.
UAC virtualization: Whether User Account Control virtualization is enabled for the process. This virtualizes the program’s access to the registry and file system, letting programs designed for older versions of Windows run without Administrator access. Options include Enabled, Disabled, and Not Allowed—for processes that require system access.
Description: A human-readable description of the process from its .exe file. For example, chrome.exe has the description “Google Chrome,” and explorer.exe has the description “Windows Explorer.” This is the same name displayed on the Name column in the normal Processes tab.
Data execution prevention: Whether Data Execution Prevention (DEP) is enabled or not for the process. This is a security feature that helps protect applications from attacks.
Enterprise context: On domains, this shows what enterprise context an app is running in. It could be in an enterprise domain context with access to enterprise resources, a “Personal” context without access to work resources, or “Exempt” for Windows system processes.
Power throttling: Whether power throttling is enabled or disabled for a process. Windows automatically throttles certain applications when you’re not using them to save battery power. Vous pouvez control which applications are throttled from the Settings app.
GPU: The percentage of GPU resources used by the process—or, more specifically, the highest utilization across all GPU engines.
GPU engine: The GPU engine the process is using—or, more specifically, the GPU engine the process is using the most. See the GPU information on the Performance tab for a list of GPUs and their engines. For example, even if you only have one GPU, it likely has different engines for 3D rendering, encoding video, and decoding video.
Dedicated GPU memory: The total amount of GPU memory the process is using across all GPUs. GPUs have their own dedicated video memory that’s built-in on discrete GPUs and a reserved portion of normal system memory on onboard GPUs.
Shared GPU memory: The total amount of system memory shared with the GPU the process is using. This refers to data stored in your system’s normal RAM that’s shared with the GPU, not data stored in your GPU’s dedicated, built-in memory.

Working With Services

The Services tab in the Task Manager

The Services tab shows a list of the system services on your Windows system. These are background tasks that Windows runs, even when no user account is signed in. They’re controlled by the Windows operating system. Depending on the service, it may be automatically started at boot or only when necessary.

Many services are part of Windows 10 itself. For example, the Windows Update services downloads updates and the Windows Audio service is responsible for sound. Other services are installed by third-party programs. For example, NVIDIA installs several services as part of its graphics drivers.

You shouldn’t mess with these services unless you know what you’re doing. But, if you right-click them, you’ll see options to Start, Stop, or Restart the service. You can also select Search Online to perform a Bing search for information about the service online or “Go to Details” to show the process associated with a running service on the Details tab. Many services will have a “svchost.exe” process associated with them.

The Service pane’s columns are:

Name: A short name associated with the service
PID: The process identifier number of the process associated with the service.
Description: A longer name that provides more information about what the service does.
Status: Whether the service is “Stopped” or “Running.”
Group: The group the service is in, if applicable. Windows loads one service group at a time at startup. A service group is a collection of similar services that are loaded as a group.

Windows 10's Services management tool

For more information about these services, click the “Open Services” link at the bottom of the window. This Task Manager pane is just a less powerful services administration tool, anyway.

Process Explorer: A More Powerful Task Manager

Process Explorer, Microsoft's powerful and free Task Manager alternative

If the built-in Windows Task Manager isn’t powerful enough for you, we recommend Process Explorer. This is a free program from Microsoft; it’s part of the SysInternals suite of useful system tools.

Process Explorer is packed with features and information not included in the Task Manager. You can view which program has a particular file open and unlock the file, for example. The default view also makes it easy to see which processes have opened which other processes. Check out our in-depth, multi-part guide to using Process Explorer pour apprendre plus.

RELATED: Understanding Process Explorer

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