Hey @GoldenEagle_222,
Thanks for getting back to us.
Just to fully understand your setup here - did you purchase the game via Ubisoft Connect, then use the installation files from a friends PC rather than installing the game from Ubisoft Connect yourself?
If this is the case, the game will potentially be looking for a Steam version to verify ownership, as you don't own this, it's triggering the client to request a key.
We advise installing the game via the client yourself if you haven't done so already.