autochk exe not found. Skiping auto check.

Hi to all! I'm newbie to the forum.
I have a terrible problem with best friends PC. I change security policies to her Hard Drive (C) in Safe Mode using Administrators account (Not her account). I delete all the users that cant use C:/ (including System), and made her the only user that can have access to the drive. Then i reboot the PC and windows came up with blue screen that wrote "Autochk exe not found. Skiping auto check" and restarted in loop. The same happens in Safe Mode. I tried to copy Autochk exe from an operating Windows XP disk to C:/ but it can't be done (I don't have access to C:/). Does anyone know how can i solve this?

Please help its not my PC!!
Thanks in advance

 

Hi fireman1979,

Why did you do this ? Windows requires System/Administrator level access to some files/folders [as you are finding out].

Perhaps a Windows reinstall should solve the problem.

 

Thanks for your replies!
rsinfo I was careless! I was in a hurry and i messed up. I will try install windows on windows...I hope its going to work.

Steve R Jones, i tried on google but i couldn't find the right solution for my case (i can't find someone how has changed security policies to his Hard Drive and experienced the same problem). I will continue searching