Microsoft confirms a server-side bug broke Store-based app activation, affecting apps like Notepad with 0x803F8001 error.

Windows 11 KB5078127 is an 'out-of-band' patch to fix an issue that broke Outlook Classic (POP, PST) after January 2026 Patch ...

Some users with a double-monitor setup are facing this issue where they say that their Windows 11 Calendar is not opening on the second monitor. While they can use the dual monitors normally, the ...

Windows 11 users report Notepad, Snipping Tool, and other apps failing to open, showing Microsoft Store error 0x803F8001 on affected systems.

Microsoft confirmed that the KB5074109 January Windows 11 security update causes the classic Outlook desktop client to freeze ...

Microsoft shared a temporary workaround for customers experiencing Outlook freezes after installing this month's Windows ...