Windows 10 allows you to associate a picture with your user account. You can select a picture from your photo library or use one of your OneDrive photos. Furthermore, if you computer is equipped with a webcam, there’s a simple trick to replace your account picture with a short video clip.
How To Customize Your Windows 10 Account Picture
Click on Start > Settings > Accounts > Your account:
Scroll to the Create your picture section and click on the Camera icon:
The Camera app will open, click on the small Camcorder button to switch to video mode:
Click on the Camcorder button again to record your video (try to keep it short).
Once done, click on OK to return to the Accounts page:
Windows 10 will automatically associate the new video clip with your user account.