I am just posting this in case anyone else has the same problem. Windows 7 upgrade advisor fails completely to warn you to remove Comodo installation before attempting to upgrade. If you don't, as I didn't, you will find you can only load Windows 7 in safe mode due to a BSOD caused by Comodo's inspect.sys driver. You can't uninstall Comodo in safe mode. To fix this you have to go to the Comodo forums and download a batch file to remove Comodo whilst in safe mode. http://forums.comodo.com/install-se...nstallreinstall-comodo-firewall-t62021.0.html You will then be able to load Windows 7. What a waste of valuable hours of my life. Imogen Bertin
