A big problem in computing is the human factor,often mistakes,stress and ignorance can cause as to do things that was not ment,
sometimes we might change the admin password on windows operating system by mistake or by purpose sometimes we dont remember the right password resulting in ACCESS DENIED.
Fortunately there is a solution to this,and the solution is software based,
This could be a good option if the files inside operatingsystem is off value,
The admin password problem is so common so thats why i post it on
tips and tricks so more people can be helped.
The software to delete the admin password of windows operatingsystem:
http://www.password-changer.com/Hope this helped!