OK, I've done that and still no luck
Interestingly, when attempting to run programs Windows Task Manager shows the program as running. If I attempt to run it 3 times then I will get 3 programs running in Windows Task Manager, but still I fail to gain access to the program??
I have tried right clicking the program and selecting "Run As.." and a window pops up with a check box labelled "Protect My Computer From Unauthorized Program Activity". However, deselecting this check box still fails to allow the program to run!
I have even set up a second user account in my name, again with full admin privaliges, and programs still refuse to work.
I am now at a total loss as to what to do next.