Window can't open any exe file

[inmate]

So I downloaded a firmware for my Canon. I was suppose to drag it to desktop. It was a exe file, then I choose to open it with winrar. This action messed up my whole computer. Every exe file has a little icon of winrar and can't open and said corrupted.

Some will open but then ask what program to open and I have to chose the icon.

Bottom line, I can't even open system restore. I need help. Click on system restore and it asked me what program to open. OMG!!!

Can't even open command prompt. It ask for what program to open.

 

[Darician]

If you can, try booting into Safe Mode and see if you can run System Restore from there. If not, when booting up, before Windows starts, press F8 and launch the Windows Recovery Environment and run System Restore from there. (You can also do this by booting up from a Windows 7 DVD)

 

[inmate]

I found my answer: http://www.sevenforums.com/tutorials/19449-default-file-type-associations-restore.html

 

[ishmael9100]

I found my answer: http://www.sevenforums.com/tutorials/19449-default-file-type-associations-restore.html

Thank you for posting your answer! Others can benefit from this.