Right-click the and select Terminal (Admin) or PowerShell (Admin) .
Ensure you are on the latest build, as protocol handling is updated via Windows Update. msxblmultiplayer link fix updated
Go to Settings > Cookies and Site Permissions > Handlers . Ensure "Allow sites to ask to become default handlers" is toggled ON . Right-click the and select Terminal (Admin) or PowerShell
Strangely, if you are clicking these links from a web browser (like a Discord invite or a web-based game tracker), the browser might be blocking the "External Protocol Request." msxblmultiplayer link fix updated
If this key does not exist, it means the protocol was deleted. The easiest way to restore it is to entirely from the Microsoft Store.
Copy and paste the following command and hit Enter: get-appxpackage *Microsoft.GamingServices* | remove-AppxPackage -allusers