I cannot sign into xbox game bar or several other microsoft services (Xbox GameBar on PC)

Thank you so much, your solution worked!

Amazing!

Glad to hear that Simon

Take care and happy gaming

Hi and thanks for reaching Microsoft Xbox gamer's community. My name is Josef.
I'm an Independent Advisor and a Microsoft Xbox user like you.

Hope you're doing great today despite this Simon

Sorry to hear that, please try this:
Press Windows button and type Services

On Services App from the list of results, press right-click and run it as administrator

Scroll to the bottom and find the following services:

IP Helper
Xbox Live Auth Manager
Xbox Live Game Save
Xbox Live Networking Service
Gaming Services

And do this with each of the services listed above:

Right-click over the service and select Properties.
Find the Startup type section and make sure it’s set to Automatic (if not, change it to automatic)
If the service isn’t started, click Start to start the services

Restart your PC and give it a new try

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If the issue persists let me know, or if you face a different error please attach an screenshot (don't forget to hide personal info)

Hello brother, I have tried all the solutions provided, I also installed a new Windows, and I am still facing the same problem Sometimes it logs me in when I delete and install game services again and restart my computer several times but also when I log in I can't install games and if I close the app and restart it it takes me back to login

because signing into the xbox app also requires the microsoft store and gamebar to use the same account or it will not work, the xbox app uses the store for purchases and downloads. if you don't want to sign into the other parts of windows then you cannot use the xbox app.

don't forget, windows is free and basically not an OS like old, it is now a service and you have to agree to the terms to use such service.