Microsoft confirms a server-side bug broke Store-based app activation, affecting apps like Notepad with 0x803F8001 error.
Windows 11 users report Notepad, Snipping Tool, and other apps failing to open, showing Microsoft Store error 0x803F8001 on affected systems.
Microsoft's January 2026 security update has broken Windows 11 apps like Notepad and Snipping Tool, introducing dual bugs ...
"Your essential text editor, elevated," says Microsoft when you open one of the world's once simplest text editors, Notepad, ...
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