Question : How do I gain full admin control over my Vista PC to which I already show to have full admin rights?

Various applications will not come up that seem to be security related in Vista. Computer management will not come up (no errors given). The event viewer will not come up, and if I try to add it via the MMC is simply closes the window. I have tried enabling and disabling UAC to no avail. Any ideas?

Answer : How do I gain full admin control over my Vista PC to which I already show to have full admin rights?

After working with Microsoft for months, with everyone from the Indian support idiot to an actual Vista developer, the ultimate solution was reinstallation. The developer believed that something was corrupted during installation, and that finding it would be impossible. After reinstallation using the same media everything seems fine.