Windows 11 apps like Notepad, Snipping Tool, and the Xbox Ally Armoury Crate aren't loading and throwing up a "Check your account" box — what is error code 0x803f8001? Here's what we know.

Notepad failing to open on Windows 11.

Windows 11 users are having a nightmarish start to their day. The error code 0x803f8001 is appearing for many when trying to open apps on their PC. File system error (-2143322111) also appears on affected systems.

We've run into the issue when trying to open Armoury Crate, Notepad, and Snipping Tool. It seems like the issue affects a wider range of apps. I'll update this piece as more information becomes available.