My current "photo editing" PC is over 10 years old and I am thinking about building a new one. I built in when I was doing a lot more photography. The new PC will be for gaming and occasional photo editing. These days I typically only take pictures at family events. I have a Lightroom catalog with lots of pictures that I would like to use on the new PC. I still run LR 3 though as I never found the need to upgrade past that. It still processes my 30D and 1DMKII photos just fine. Digging around on the web I noticed that LR is now a subscription based software. I have no intentions of paying a monthly or yearly fee to use a piece of software a handful of times a year. So the question is, can I install my copy of LR3 on a new PC?