Ok, so I've updated my video driver and the Python25.dll corrupted again. I try to uninstall but get a very weird error. I've tried unis000 and the Control Panel Add or Remove Programs.
The only thing that it's sure, is that your system has several issues with file corruption. These might due to several things, from viruses, to file system corruption, to hardware faults (memory problems, etc). A file simply can't corrupt itself, on a system that works normally.
An access violation on unis000, which is a standard Uninstaller component, shouldn't simply happen, that file got probably corrupted as well.