Hey ARS0H1A,

Thank you for kindly reaching out regarding the game key you received from your friend. Sorry to hear you are having trouble when trying to launch it.

For this I would first recommend to ensure you are logged into your correctly linked Ubisoft Connect account. You can check this by logging into the account website [account.ubisoft.com] and checking your linked accounts.

Once you are logged into the right account, please try launching the game from Steam.

Any trouble, just let us know