tman1 :
Try this:
http://www.bleepingcomputer.com/download/fixexec/
The computer can't run any exec files. Downloading an exe to run to fix the issue of not being able to run any exe files would seem a non-solution. :-(
HOWEVER, I figured out that I can use msconfig to launch cmd.exe in administrative mode and then from the cmd prompt I can launch exe files. Unfortunately, it didn't fix the issue.
Additional information:
The first issue was on boot the file credui.dll was missing. I downloaded a windows 7 version of this file and managed to get it registered. That resolved that issue but now on bootup I get the following error:
The procedure entry point CredUIPromptForWindowsCredentialsW could not be located in dynamic link library credui.dll
And of course... I still can launch any exe files without the prior mentioned mess.