I'm using 64bit windows 7 home. About 2hrs ago, my Security Center tossed up a red flag so I clicked it. It said that the security center was disabled. So i clicked to reenable and got a box popped up saying "The window's secruity center service can't be started". So i opened services to try to reenable it and upon doing so it disables my mcaffee. So I proceed to turn them on and security center reverts back to disabled. What gives? I ran Microsoft Safety Scanner and it found / removed Trojan:Win32/Vundo.gen!AV, which from reading others posts is a killer trojan. Any help would be awesome. This thing is killing me, as I just bought this computer 2weeks ago and just got it in the mail 2days ago, So to have something messing up already is a bad sign of things to come I guess.

Have you tried scanning the system with MalwareBytes? If you didn't yet, then try it, just do a Quick scan. And let us know the results. MalwareBytes: http://www.malwarebytes.org/products/malwarebytes_free

When you have scanned your computer for malware and and then sure that it is clean. You could check the system files are not corrupt by running the utility 'sfc' from the command line. Hope this helps. CathalCathal O'Brien BSc, PgDip, PhD . Techsmart IT Support | Computer Repairs