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.
ZDNet

10 free Windows apps that improved my productivity (and I'd easily pay money for)

If Windows is your preferred operating system, consider these open-source apps. There are numerous open-source apps available for almost any task. These are all free to install and use on Windows.
Techno-Science.net

9 Best Open-Source Apps from GitHub You Can Actually Use Every Day

GitHub hosts powerful open source apps you can use daily, from Immich for photo backups and Upscayl for image upscaling to VERT for file conversion, BC Uninstaller for cleanup, Mole for Mac storage, ...
Windows Latest

Windows 11’s “almost full-screen” Android apps mirroring now available for everyone via Phone Link app with supported phones

You can now use up to 90% of the desktop screen space when streaming Android apps to Windows 11 using the Microsoft Phone Link app.