Problem running downloaded exes. Any help please?

[flyingblind]

This is probably the best place to post this as it is not a technical question directly relating to CloD. I have suddenly found that I cannot run exe files that I have downloaded. Stuff like CPU-Z and MSI Afterburner etc.

I get the message - The specified service does not exist as an installed service.

I have done a bit of Googling and it seems it is a registry problem but none of the solutions suggested seem to work. Anything done using the run command and cmd etc get the same message sooner or later.

Do any of you guys have any suggestions?