Windows 7 Upgrade installation Errors : What to expect and how to find the FIX : What you see here is exactly what I did and how it happened. My HP computer came with a Windows 7 Upgrade. I was to get the Win 7 disk when it became available last October from Microsoft. I decided video my install it so you could make up your mind to install or not, if your hesitant. My VISTA upgrade went to the Blue Screen of death and I had to do a clean install. It was difficult

From: http://www.bestnewslinks.info/technology-news/microsoft-technology-news/windows-7-upgrade-installation-errors-what-to-expect-and-how-to-find-the-fix/