Unable to install or update games and apps, Installing bar at 0.0% indefinitely

Do your games install at all? No games or game updates install at all. Always start and immediately switch to installation stopped at 0.0%

Apps and console updates both install perfectly.

That's great, as the game bar came already installed with the system you don't need to uninstall it, you should try to update the system and any app, after that install the Xbox app again and try to install the games, but do it on a different storage device

Thank you for the reply. We're doing our best to investigate the issue so that we could identify what's causing you unable to post trimmed captures in the Xbox app. May I know if the issue started after installing the Windows Update on your computer? We're
suspecting that the update is affecting the functionality of the Xbox app. Also, can you check if there's an update available for Xbox Game Bar in the Windows Store?

It shows ready to install, goes to 0.0% then says download stopped.

Could you try installing the Xbox app and change audio settings too

Also, do this:

Open Settings, click Update and Security and then Windows Update;

Click Check for Updates;

Click the Download and Install Now option, if available (Install optional updates as well)

Also, check the Microsoft Store for any updates on the Xbox apps and its services and update everything too.

Then do this:

Go to windows settings > apps > search for xbox game bar app > click on it and select advanced options.

After that, click repair and then reset

Restart your PC if an update was installed and try again