These instructions apply to all versions of Windows.
How Do You Reset the Login on a Lenovo Laptop?
Go toMicrosoft’s recover your account pageto do that.

If you’re using a local account and you know your password, jump in andchange your Windows password.
How Do You Unlock a Laptop If You Forgot the Password?
This method, however, only works if youcreated the Windows password reset diskbefore losing your password.

after you grab your reset disk, take these actions:
Try logging in with any password.
SelectOKwhen you’re told the password is incorrect.
Insert the password reset disk.
The Password Reset Wizard should start automatically.
If the reset disk doesn’t start right away, trybooting from the USB drivethrough the system BIOS.
Select your USB drive with the reset disk and follow the instructions to create a new password.
How Do You Unlock a Lenovo Laptop Without a Password Reset Disk?
The only problem is Windows may ask for your password.
Another option is tofactory reset your laptop, which will wipe all of your personal files.
This method is only recommended if you don’t mind losing everything on the machine.