Error 0x803F8001 in Minecraft – How Do I Fix It?
I tried to run Minecraft, but the error 0x803f8001 popped up. It also has the message ‘Microsoft Launcher is currently not available in your account’. I already bought Minecraft! What else does it want from me!
Most likely, the 0x803f8001 error when launching Minecraft is a result of running the game through the wrong account. Simply put, you are trying to run a game that is not on the chosen account. In fact, that’s what the error message hints at.
To get rid of the 0x803f8001 error, you will need to open the Xbox app and re-login to it from the same account you use for the Microsoft Store (i.e. the account where the game was purchased). After that the error should go away.