When I try and install Vista SP2 I get error code Ox8007020. The knowledge base and forums are vague about this error except is involves a file sharing violation. I have tried Windows update, the stand alone download, uninstalled all virus programs (McAfee) and non window's firewall, turned off win defender, Safe boot, Clean Boot, readness tool and fix it, reset window update and the file integrity checker. I am quickly running out of options other than a wipe and fresh install. Would anyone know of a way to track down the offending program or process?