When you log in to your Windows 10 PC, you might need to enter your username and password. If you've forgotten what this information is, don't worry! Your username is usually displayed on the login screen. It's the name you see when you first start up your PC and before you enter your password.

If you can't remember your password, you might have set up a hint to help you remember. This hint is displayed below where you enter your password. It could be a word or phrase related to your password that can jog your memory.

If you still can't recall your password and hint doesn't help, you might need to reset your password. You can do this by clicking on 'I forgot my password' on the login screen. Follow the prompts to reset your password or use other recovery options like using your Microsoft account if you have one.

Remember, keeping your password secure and not sharing it with others is crucial for protecting your personal information on your PC. Make sure to create strong, unique passwords and consider using a password manager to keep track of them safely.