Forgotten the administrator account pw

You could also try John The Ripper

http://www.openwall.com/john/

 

You could try to repair your windows install not quite reinstalling but not a quick fix either.

 

Buy some good strong rope, and you'll have a handy anchor for your boat. http://bit.ly/k7npur

 

search MS support website. i remember there is an article about it

 

I'll also vouch for this; Peter Nordahl==lifesaver.

 

It seems not working on the latest Windows 10. just tested it on my HP laptop

 

Much easier to use the cmd.exe rename trick to reset the password.

 

You responded to a 6 years old post. The OP probably figured it out by now...

Also there was no W10 in 2011...

 

Agree. it is free and works. Another way is by enabling the default admin account: http://www.uukeys.com/bypass-windows-7-8-10-password.html

 

No matter the Windwos 7/8/10 user , if it really works as you say , i would recommend it to my friends and family ,