On Windows 11, you can change your account password and PIN from the Settings app and Sign-in screen, and in this guide, I'll teach you the steps to complete this task.

If you need to change your account password, in this guide, we'll show you the steps to accomplish this task on Windows 10.

Someone who obtains your Microsoft Account password can sign in anywhere with it. A PIN is saved on and is local to your computer or device so it can’t be used elsewhere.

How to change or reset your password on Windows 10, for a local or Microsoft account ...