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I believe your problem is because you do not have the latest Windows Updates.
Please click your Windows Start button and then click on the Settings Cog icon.
Click on Update & Security.
Click the "Check for updates" button even if your computer says "You're up to date".
Let any updates that are found be installed.
Reboot your computer.
Check for more Windows Updates. Keep checking for updates until your computer says "You're Up to date" after checking.
Then go to the following link and check for Microsoft Store updates. Install all updates that are available: https://support.microsoft.com/tr-tr/account-bil...
Reboot your computer afterwards.
Then check to see if your Xbox Game Bar works.