Windows 7: Windows 7- Cannot run any programs or exe files apart from IE 64Bit

Got a New Windows 7 machine about two months ago. Recently discovered about a week ago that the only thing that will actually run is Internet Explorer 64 Bit. Ive bootedd into Safe Mode (with Networking and Non Networking options) and had the same results.

I dont think I have a virus but as I cannot run any programs I cannot check. I think that this is some sort of Windows Error. Ive tried to use the In Built 'Startup Repair' and also the 'Memory Diagnostic' Tools, which have returned no errors.

Also Ive tried, certain exex file registry fixes which are out there, and these dont work. I have some Excel files on my desktop which which I click them I get the following Error 'There was a problem sending the command to the program'

I have not got any restore points which go back far enough before this issue. Also do not have the CD.

Does anyone have any suggestions which do not require a re-install?

Thanks

Given the nature of the issue, you could try to get an AV package installed in safe mode, but that may not work. There's no reason to own or have a system without the ability to reinstall or restore the OS, so I'd go back to your computer manufacture and get a disc, or borrow one from a friend, since you (most likely) have a legit license already. Either way, a fresh install is most likely your best and only bet.