Hey guys, I'm on Windows 7 x64. I installed a program and received trojan alerts from Windows Defender and Avira Antivir, but I followed Defender's advice and rebooted my computer like a fool. Now I cannot open any .exe file. I can't even scan for viruses! I tried logging into safe mode, disabling all non-MS services and all startup items, yet I still cannot open any program. I receive the following message when I (or Windows at startup) try to open something: "The application was unable to start correctly (0xc0000005). Click OK to close the application." I am quite dumbfounded, as I never had to deal with a virus that wouldn't let me open ANYTHING. Does anybody have some advice? Thanks a bunch!