I'm using Windows 7 Home Premium 64-bit. Lately when I try connecting with any browser it says I can't like the internet is unplugged. But I can download and install Windows 7 updates. I was maybe thinking it was a virus so I installed Malwarebytes and Superantispyware. Malwarebytes wouldn't update but SAS would. It had AVG anti-virus 2011 and I uninstalled it with the Windows built in uninstaller. Then I tried using "avg remover 64 bit" and I got the message "the version of this file is not compatible with the version of windows you are running" which is strange because I have the 64 bit version of Windows. I got suspicious and tried running TDSSKiller.exe, rkill.com and some other AV programs but got the same "the version...". I read in a couple of searches that it's probably a virus and since I can't run any AV stand alone program, I suspect it is. When I ran Malwarebytes and SAS, it showed no virus's which I don't believe. Also everything in the Network and Sharing Center is totally normal showing that all is working fine. So if I can't run any of my anti-trojan, etc. programs, I can't see what it might be. This does the same in Safe Mode.