The sign-in prompt in Office 365 or Microsoft 365 desktop apps may say device TPM problem, Trusted Platform Module ...

Editor’s Note: Services have returned as of 7:21 PM PT. Sign-in functions for Microsoft’s Xbox Live service failed Tuesday into the afternoon, preventing users from signing in to and playing Xbox ...

Microsoft’s latest Windows 11 glitch has turned what should be a frictionless sign-in into an obstacle course, undercutting one of the operating system’s most heavily promoted conveniences. Instead of ...

Microsoft released an emergency out-of-band update for Windows 11 on March 21, 2026, to resolve widespread sign-in problems affecting Microsoft accounts in apps and services following the March 10 ...

Microsoft is investigating an ongoing Outlook.com outage that is causing intermittent signing issues and preventing customers from accessing their mailboxes. Since the incident started over three ...