It’s hard to say at this point how widespread the problem is, but throughout the day, the number of complaints from users on the Microsoft support forum, the Reddit community, and on social media has been steadily increasing. Despite this, Microsoft was slow to acknowledge the problem. Only after the number of complaints reached a huge number, and the developers analyzed them, the problem was recognized, and Microsoft announced that it was looking for a solution.

The error 0x803F8001 that appears when trying to launch the Xbox Game Bar is reportedly the result of a server-side change made on November 5th. The problem continues to be relevant and affects users from around the world. The source says the mentioned error appears on Windows 10 (1809) and later users. But since the problem does not affect all users, it is difficult to say what exactly is the source of its occurrence.