Microsoft has shared a workaround for Xbox Game Pass issues on Windows 10 for years. Gamers have reported problems when trying games they got through the subscription since at least 2019. Microsoft has released a workaround to help subscribers. It requires deleting Gaming Services registry keys and reinstall the Gaming Services app from their Windows 10 devices. The workaround is available on Wednesday and users can now install and start games again using Windows 10’s Windows PowerShell (Admin) The workaround requires deleting the registry key and reinstating the app.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-finally-shares-fix-for-xbox-game-pass-installation-errors/