Have you ever had your keyboard decomposed or your computer just refuses to accept its input? This is particularly frustrating if this happens when the computer is turned off because you can not enter your password to access Windows. Fortunately, Microsoft has included a way to access your data (and hopefully solve your problem) using only a mouse or touch screen.
Turn on your computer normally. Assuming that there are no deeper technical problems with Windows or your physical hardware, you should see the login screen as usual.
Look around the screen until you see this symbol, ease of access to the center. This is a set of tools for those who may have difficulty with normal computer operations, lower dexterity or visual impairment.
On Windows 7, the button is in the lower left corner. In Windows 8, this is the same place, but only after a single click to elevate the "cover" screen and expose the login prompt. On Windows 10, it is also passed the "cover" screen, but in the bottom right corner. (Know that the narrator can automatically activate, causing you to explode a few synthesized voices.)
After clicking the Center Accessibility button, click "Screen Keyboard" or "Type without Keyboard". (On Windows 7, click "OK" or "Apply") more or less similar to a smartphone or tablet keyboard. It allows you to click on the keys with the mouse.
Now, just click in the login field and then click on the correct letters or numbers on the keypad to enter your password. Note the gray keys – these symbols are accessible by clicking on "Shift" and then the corresponding key. When you are finished, simply click "Enter" or the login button, and you will normally log on to Windows.
Hopefully once you are on Windows, you should be able to fix anything that is wrong with your keyboard. you may need to reinstall the drivers or reconnect if it is a Bluetooth model .
And if for some reason you need to access Windows without a mouse, you should be able to enter your password directly on the login screen. If the login field loses focus, simply press "Tab" to access it again.