On my previous windows installation I was running TD 2020.10. Before reinstalling the OS I read that profile backups were contained in profiles_autobackup.ini, so I kept that file.
On my clean installation, what procedure do I need to follow to end up with a modern TD version with my old profiles accessible?
You need to save/export the profiles (one by one maybe?) then upgrade the FW and import the profiles to the new TD. I can’t remember if you need to import them with 2021.9 version first…