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.

Armoury Crate, Notepad, and Snipping Tool are just a few apps affected by an ongoing issue.

Windows 11 users are having a nightmarish start to their day. The error code 0x803f8001 is appearing for many 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 avaialble.

A post on a Microsoft forum by user "Kave" shared frustrations recently:

"Getting the error code 0x803f8001 for most my microsoft apps including my Notepad app which has important information and URLS i need for my job. This is getting pretty paralyzing. I can see other people saying they cannot open stuff like Alienware command center, Nitrosense, Snipping tool, etc with the same error code today."

According to Harold Milan, an Independent Advisor who replied to the post, that occur often occurs when the Microsoft Store cannot validate app licenses.

"In most cases, this is due to a corrupted Store cache, a temporary Microsoft account sync issue, or a Store registration glitch rather than actual data loss," said Milan.