Trouble Signing Into Microsoft Apps – Need Help!

If you’ve already restarted and reinstalled the apps, reaching out to Microsoft support might be your best bet. They can provide more specific diagnostics for account-related issues. While it's a hassle, they would have the access to check if there's something wrong with your account since it affects multiple apps.

Just a thought, but sometimes Windows updates can create temporary issues. You might want to try rollbacking to a previous restore point if you’ve set one up. If that doesn’t work, double-check if there are any known issues with Microsoft services currently. It could be a temporary server-side problem.

You might want to check your network settings. Sometimes, firewalls or proxy settings can interfere with Microsoft's services. It could also help to clear the cache of the Microsoft Store app. You can do this through the settings or by using the WSReset command in the Run dialog. If that doesn't work, consider looking into your Microsoft account settings; any issues there could also cause sign-in problems.