Microsoft Office wants you to save your documents in online locations such as OneDrive or SharePoint. This is the default in applications such as Word, Excel, and PowerPoint. Here's how to change the default backup location of Documents or another folder to "This PC".
These instructions apply to the latest versions of Microsoft Office on Windows 10, whether you have an Office 365 subscription or have purchased a package such as Office 2019.
To start, open an Office application such as Microsoft Word if it is not already open. Click on the "File" menu in the upper left corner of the application window.
Click on the "Options" link in the lower left corner of the window. (If you have just opened an application such as Word and you are prompted to create a new document from a template or open an existing document, you can simply click "Options" immediately without clicking on "File" first.)
Select the "Save" category on the left side of the window. Under Save Documents, enable the "Save to Default Computer" option.
Office will save your documents in the Documents folder of your default user account. This is usually C: Users NAME Documents .
If you want to change the default folder, you can select a new location by clicking "Browse" to the right of "Default File Location".
When done, click "OK" to save your changes.
When this option is enabled, Office applications such as Word, Excel, and PowerPoint save documents to "This PC" by default.