How to find a serial # for Lightroom 3 purchased in 2010
After spending 3 1/2 hrs with Adobe support to fix issues with PS 2020 & Bridge & Camera Raw CC versions today, I went back to use Lightroom 5 (desktop version, not CC) & cannot get into it without registering its serial #, which I did. Immediately a message came up that said this was an upgrade serial #; the serial # from my previous version of Lightroom is also required (LR 3, bought in 2010). I have the original package for LR 3; inside the pkg is a msg that says 'Use this coupon code to get your serial #'. I cannot find a way/place to enter this 22-digit alphanumeric code so that I can get my serial # & register my desktop Lightroom 5 version & use it again.
Please help. Adobe chat support was unable to help me & directed me to this forum.
Thank you,
Denise K
