Because browser sign-in still works but Microsoft apps on the PC fail, focus on account sign-in state and app-side cached sign-in data.
- Use the Microsoft account Sign-in Helper tool first. It is the primary troubleshooting path for Microsoft account sign-in issues and can detect account problems and tell what action is needed.
- Since the password was reset but app sign-in still fails, use the Sign-in Helper tool again specifically for the case where the password is known but has stopped working.
- If the account shows "You have tried too many times with an incorrect password", stop repeated attempts and use the sign-in helper to check the account state.
- If app sign-in keeps looping on this PC, remove stored sign-in entries again from Credential Manager for Microsoft Store and Xbox, then try sign-in again. This matches an accepted resolution for Microsoft app sign-in loops on Windows.
- If the issue is specific to Xbox-related sign-in, restart the PC, then make sure Gaming Services is up to date. If needed, in an elevated PowerShell window run:
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get-appxpackage Microsoft.GamingServices | remove-AppxPackage -allusers -
start ms-windows-store://pdp/?productid=9MWPM2CQNLHNThen install Gaming Services from the Store page that opens.
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- Also make sure the Xbox app is up to date. If needed, in an elevated PowerShell window run:
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get-appxpackage Microsoft.XboxApp | remove-AppxPackage -allusers -
start ms-windows-store://pdp/?productid=9mv0b5hzvk9zThen install the app from the Store page.
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- If the account name is suddenly not recognized, or sign-in says the account does not exist, use the Sign-in Helper tool for that specific condition.
- If the account has not been signed in to for more than two years, it may have been deleted and cannot be reopened.
- If none of the above resolves it, use I need to talk to a customer support agent.
Note: the PowerShell remove/reinstall steps remove and reinstall app components. Use them carefully and only for Gaming Services and Xbox App as listed above.
References:
- I can't sign in to my Microsoft account | Microsoft Support
- "You have tried too many times with an incorrect password" error when signing in to your Microsoft account | Microsoft Support
- Troubleshooting Sign-in and Sandbox Errors
- Xbox and Microsoft Store sign-in problem. - Microsoft Q&A
- My username and password have stopped working | Microsoft Support