Hi Moderi, you could try using a tool called ophcrack to login to your Windows 7 https://www.lifewire.com/ophcrack-livecd-review-2626148

Tried the tool a few hours ago and says tablet not found.

Hi Moderi, back in the days I remember using Hirens boot cd to remove passwords from Windows 7 login screen - https://community.spiceworks.com/how_to/101368-clear-and-reset-windows-accounts-password-with-hirens-bootcd

Thanks, Tomas. I will try it soon.

If you have a password reset disc , The Hirens boot CD is redundant .
Read it : https://www.passmoz.com/reset-windows-7-password.html
You can know how to access you Win 7 computer without password .

It's actually quite simple.
1:lose everything and reinstall the system.
2:Using a password reset disk to reset the Windows password .
3:Use third-party tools to break it and set up a new password .
As for the third-party tool that you can select it : https://www.recoverywindowspassword.com/bypass-windows-10-8-7-login-password.html

You need to know why the password was not accepted,like password error or keyboard locked case.....This must cause the computer to deny you access with "Login password".If nothing else,using this program to fix it.
https://www.winpwd.com/