I met the same difficulty for the previous period,and I know the easy
and effive method that you can use Windows Password Reset Deluxe to solve it by the Internet,while the use method is following.
Tip1
😀ownload Windows Password Reset Deluxe from
http://www.windowspassswordreset.net and install it on your computer.
Tip2:Burn Windows Password Reset to CD/DVD or USB.
Tip3:Insert newly created CD/DVD or USB to your computer which you forgot its password and reboot it,and follow the instruction that follows.
I hope it can help you soon.