I upgraded from win 7 to win 10. It worked for two whole days before freezing at the Bios screen on day three. It has been that way for a week... So with no answers from MS I purchased a new computer with win 10 which opens a whole new problem of how to get Lightroom off of a back up and onto the new win 10 machine. Can this be done? will Lightroom 4.4 run on win 10? Where did I put my user key from Lightroom 2..???
When you install version 4.4 and use an upgrade serial number for 4.4 it will then ask for a previous version serial number. That is where you input the V2 serial number.