Alright so a while ago I upgraded from vista x64 to windows 7 ultimate x64.
Weird thing was I had two program files on my hard drive after I upgraded.
So I decide to go ahead and delete program files (x84) because I figured I will no longer need this with windows 7, apparently I was wrong.
After I deleted the old programs folder I was no longer able to run anything that requires administrator.
Weird thing is when I look at my user accounts it still shows me as an administrator.
Here is an example for something that goes wrong.
I'll try and start a program and this error message comes up.
Windows cannot find (file name/location here). Make sure you typed the name correctly, and then try again.
Welcome to the Seven Forums
With 64-bit you need both the Programs File and Program File(86) I'm not sure but you might be able to do a system restore and recover that. System Restore
Jerry
If trying System Restore mentioned above doesn't fix it, a system backup image from before you deleted it will. If you don't have a system image then a repair install,
Though I'm not sure it will help it can't hurt to try, have a look at this tutorial at the link below, this runs from the Windows Recovery Environment (WinRE) so Windows won't be 'running' during the scan, sometime it takes a couple separate runs to complete successfully and be sure to post back with any further questions you may have and to keep us informed.