Noted at http://windows.microsoft.com/en-us/windows-8/restore-refresh-reset-pc
Malware, PUPS and such can damage this OS.
Bob
Recently ive been getting error 2503 and 2502 when trying to install. I tried looking into it and realized my laptop says im not administrator and something is denying installations. Ive tried everything I could find and im still unable to install. Please help asap!!!!!
- Windows 8.1 64 bit operating system, using avast antivirus which had removed some PUPS prior to this mishap. Tried looking into it...

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