The login image that appears next to your name is a customizable picture that provides personalization of your computer account and can be changed by accessing your computer's account settings. Your computer comes with a wide array of preloaded images that can be used for your login account, or you can save a personal picture to use as your default login picture.
Click "Start" on your PC's desktop menu, then click "Control Panel" and "User Accounts and Family Safety."
Click "User Accounts" and "Change Your Picture."
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Click the new image, or click "Browse for More Pictures" and click the personal image you wish to use.
Click "Open" to save the custom picture as your new user account picture.