Can't open any .exe files

[Wario Bros.]

My compter just had a nasty virus. I was able to deleted most of those manually (probably not in a professional way). But when I tried to open any .exe file, it'll pop up a command window titled C:\WINDOWS\system32\pump.exe then disapear. Thinking pump.exe is a virus, I went to that and deleted pump.exe. Now when I try to open any .exe program, it will display a "what program do you want to open it with?" window. Anyway I can fix this?

[Char]

os would help

i could think of a solution atm but it requires regedit.exe...

[Wario Bros.]

Well, googling this problem, I found something that fixed this (don't know how though) Now I'm trying to start Malwarebyte's Anti-Malware but it is saying that it is looking for mbam.exe. It didn't come in the install pack.