There are a few ways to unlock a computer without the password. The most common methods are:
Use a Windows password reset disk
A Windows password reset disk is a bootable USB drive or CD/DVD that you can use to reset your password if you forget it. To create a password reset disk, you will need to have access to your computer when you are still logged in.
Use a third-party password reset tool
There are a number of third-party password reset tools available that can help you unlock your computer without the password. These tools typically work by creating a bootable USB drive or CD/DVD that contains a tool to reset your password.
Boot into Safe Mode
Safe Mode is a special diagnostic mode that Windows can boot into. In Safe Mode, only the essential drivers and services are loaded. This means that any third-party programs that may be interfering with your ability to log in will not be loaded.
To boot into Safe Mode, restart your computer and press F8 repeatedly while it is booting up. This will open the Advanced Boot Options menu. Select Safe Mode with Networking and press Enter.
Once you are in Safe Mode, you can try to log in to your computer with the built-in Administrator account. If you are able to log in, you can then reset the password for your normal user account.
Reset the BIOS or UEFI password
If you are unable to unlock your computer using any of the methods above, you may need to reset the BIOS or UEFI password. This will reset all of the settings in your BIOS or UEFI, including the password.
To reset the BIOS or UEFI password, you will need to consult the documentation for your computer's motherboard. The process for resetting the password will vary depending on the make and model of your motherboard.
Important note:
Be careful when resetting the BIOS or UEFI password. If you do not do it correctly, you may damage your computer or make it unbootable. It is important to consult the documentation for your computer's motherboard before attempting to reset the password.
Disclaimer:
The information above is provided for educational purposes only. I cannot be held responsible for any damage or loss that may occur as a result of following these instructions.