wintems virus, show hidden files not working - please help me

Hello, I can hardly run any helper programs - getting "not a valid win32 program". Can't "unhide" hidden files - working in the blind. After reading many forums, I have the impression this is the latest and most virulent strain of the virus. I do have another computer I can use to download and transfer via usb (not sure if that's safe). Also, someone was on my infected computer deleting things (mainly the helper programs I dl'ed to fight this thing). Most of my data is still intact but needless to say, I won't be connecting that computer to the internet again unless/until it can be cleaned. Greatly in need of help.

 

Looks like I'm back to normal. Thank you very much.