Can't open .exe files in Vista
Vista Home Premium
I was working on cleaning off a trojan (vista defender 2011) and I think I got some of it cleaned up, but when I went to open Internet Explorer, it asked me what program I want to use to open it with. Since it was just a shortcut, I chose IE. Still no go. I used another computer to download SuperAntiSpyware and MBAM. I placed them on a flash drive and copied them to the desktop of the Vista computer. Same problem when I click on them to install them. It asked me what program do I want to use to open this file.
I tried booting to last known good configuration. No help.
I am completely at a loss at this point.
Thanks in advance for any help you can give.