when I upgraded my MAC to Yosemite OS I lost lightroom. I was able to restore elements because I still had the CD. Light room came as a bonus when I bought it at COSTCO last year. How can I contact Adobe people to see if they will restore it? I tried my 'finder' nothing..thanks! Pat
If you took the time to register Lightroom with Adobe after you installed it, you can retrieve your serial number from your account information that is available to you online. Serial numbers are crucial to have available in the event of a computer upgrade or change of computers. It's hard to understand why people don't take care to store those serial numbers where they know they can get them if needed.