Ms-gamingoverlay://kglcheck/ - //top\\

The suffix is a specific sub-service within this protocol that checks for "Known Game List" configurations. It helps Windows determine if a program is a game and whether the overlay should be active. Why the Error Message Appears

It looks like you’ve shared a URI scheme: ms-gamingoverlay://kglcheck/ ms-gamingoverlay://kglcheck/

Let me know your goal.

You can try pasting it into the dialog ( Win+R ) or a browser address bar — but on a standard Windows system, it may just launch or focus the Game Bar, or do nothing visibly if the handler isn’t fully exposed for manual invocation. The suffix is a specific sub-service within this

This is likely a custom protocol handler used by or related Xbox/GameDVR components. ms-gamingoverlay://kglcheck/