Before you ran the upgrade did you run the windows 7 advisor? Run the advisor, this will tell you of any hardware and software issues of you system. Any issues must be corrected before the upgrade. In windows 7, windows mail is no longer available as well as windows movie maker and windows photo gallery as they were available in vista. You have to use some other 3rd party software for those applications. MS wants you to use Windows Live Essentials, which is not bad, I use the software. If I remember correctly l had to uninstall some software before I continued with my upgrade. As to which software, that's a blur now as it was so long ago.