Why can't I create C++ Win32 Console Applications in Visual Studio 2010 Ultimate?

Ok, I recently had Visual Studio and when I tried to make it I had the Registry Disallowed message. So I fixed it for Visual Basic but C++ didn't work. I then used System Restore and it re-installed Visual Studio (It didn't work before and when I tried it again it worked) and now I run it, and it can Create Visual Basic, but when I try C++ I click the Project thingy, and I enter the name, but when I click OK it dissapears and I then brings the Project Creation Wizard back up again! Help please. Thanks :)