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Access is denied!
Hello. First post on here and I think I have a major problems. I'll try and keep this as short as possible.
I've had problems with NVIDIA not installing the latest drivers on my CPU, so I uninstalled geforce and all of its components. I went into the registry following technical advice and deleted manually any geforce entries. I tried to reinstall geforce software but still it wouldn't install the programme or the drivers. I also followed a suggestion whereby uninstalling AVAST and re-installing but that didn't work.
I then downloaded a user made utility from the geforce forums that removes the components from the system to allow for a clean install. It goes through the system wiping everything from NVIDIA. I did this in safemode and restarted the machine.
Once back into it the main system it had uninstalled the VGA drivers and NVIIDA drivers but when I went to device manager to re-download, the CPU found the drivers but wouldn't install them saying 'access is denied'
I am the administrator on my machine so I promptly tried to change the permission setting on my CPU so I could reinstall the display drivers and the geforce stuff. This didn't work and stupid me, I didn't make a backup before using this utility. Basically, I can't install any drivers or even anything on my system now. I am now without a virus protection because the computer won't install anything at all as I don't have permission.
I'm worried I've messed up my registry or something requiring a lot of work to undo. The rest of the CPU is working fine but I can't install anything at all.
Is there any way to rectify this problem? How can I regain my permission or even bypass it? I tried to create another user account but it still doesn't work. I'm basically stuck. Please help if you can!
My CPU - win 7 64 bit home premium
HP Pavillion i3 2.4ghz
6 gb memory
Geforce 520M 1 gb
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