Please note that we've updated the Mount & Blade II: Bannerlord save file system which requires you to take certain steps in order for your save files to be compatible with e1.7.1 and any later updates. You can find the instructions here.
I bought the game (Warband) back in 2013 through steam.
I want to start playing again and install some mods. I downloaded the standalone game from taleworlds and tried to activate with steam key (read in this forum that they are compatible). I only get the error "Incorrect serial key"...
And installing from GamePass and attempting to start, Nothing happens for a time and then an error appears with "You do not have a valid license to run the game"
I have tried reboot PC, repair +reset from settings, run an admin.