I think I ve lost my old lightroom program when changing computers.. I have 3.2 but used to have 5 (I think) I have codes for 3.2 and an upgrade code. How do I use the upgrade code? My pictures are on backups.
When you Install 5.7.1 from the downloaded file you will be asked for your v3.2 Serial Number (that validates your ownership) and then your v5 Upgrade Serial Number. You need both those Serial Numbers!
Check back in this forum with your progress and questions.