Windows 11 apps won't ppen. What is error code 0x803f8001?

Many Windows 11 users are unable to open apps on their PCs and are running into error code 0x803f8001.
Windows Latest

Windows 11 KB5078127 emergency update (25H2) fixes Outlook POP, PST crashes, unresponsive apps after January 2026 Patch Tuesday

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

Microsoft confirms Windows 11 January 2026 Update issues, releases fix for at least two bugs

Microsoft has confirmed that the Windows 11 January 2026 Update is causing at least three major issues, rolling out fixes for ...
PC World

Faced with a corrupted Windows 11 app? Try this

One of the things that can be really frustrating is if one of your Windows apps won’t open or is corrupted for some reason. If that happens you don’t have to grin and bear it, there are a few steps ...