To regain access to your computer, just follow the below steps:
First of all, boot your computer in Safe Mode (as shown in the image below). Then you can login
to Windows as the built-in Administrator account, then reset password for your locked account.
Start or restart your computer, instantly press and hold F8 to enter Advanced Boot Options then choose
Safe Mode to start (as shown earlier in the image above).
Logon as the account named Administrator.
Change or remove your forgotten password in Control Panel.
With the above tut, you should be able to regain access once more to your computer.
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