Cant log into my Microsoft/xbox account on my PC.

Okay, I did all that. Made the changes and I still get the same error message.

Hi there.
Would I know if you tried all the possible solutions provided in the “Problems launching a game from the Xbox app” dropdown?

https://support.xbox.com/help/games-apps/troubl...

Including reinstalling Gaming Services.

It’s unfortunate to know the inconvenience persists.

I can suggest this other possible solution:

Press the Windows key on your keyboard > type “PowerShell” > right-click on the result and click “Open as Administrator”.

Then type the following command and hit enter:

Set-ExecutionPolicy Unrestricted

Now, type this other command and hit enter:

Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml”}

This last command can take a while, don't worry if you see some red messages in the middle of the process.
Once the process ends, restart your PC and verify if the inconvenience is solved.

I was able to log in now, But when i go to launch a game (for example Among us) it gives me error code: 0x803F8001. I only have 1 profile on my pc. Im so lost

Hello LEGENDOFDILLIAN, this is Manuela. I'm an Independent Advisor and community user like you, ready to assist with this.

Not a Microsoft employee.

I’m sorry to hear you’re having some trouble when trying to sign in with your account on the Xbox app and other Microsoft services. Let’s try to sort this out.

First, please verify if all the Xbox services are running on your PC.
For this, search Services by using the Windows search functionality and look for the next services once you open the program:

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

Then, do this for each service: Right-click on it and select Properties. In Startup type, make sure it’s set to Automatic.
If the service isn’t started, click Start Click Apply and OK to save changes, restart your PC and try again.

**If you're not able to do this with Gaming Services, you can skip that part

Additionally, please check if your system and all the apps are up-to-date.
You can check for Windows updates via PC Settings > Update & Security > Windows update > click on “Get Updates”.

You can check for app updates by opening the Microsoft store