Hi, wondering why you can't do a reinstall? Is it because you don't have a previous (older) copy of windows? If you do, a reinstall is relatively simple.
Clean temp files, re-cycle bin and shut down Virus program. Rename win.com (go to DOS prompt (c:\Windows), type "ren win.com...
If you simply wish to change the Product Key back to that of the "upgrade" CD you can do it by editing the Registry.
Open the Register (Start/Run type "regedit"). Do a search for the current product key and change it to that of the "Upgrade CD."
However, none of us...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.