Error code 0x801901F4 can indicate a number of things, most commonly driver errors. However, in this particular situation, when it’s related to a Windows Store app, it indicates that there is a problem with Windows Update.
You might get this error with Windows apps such as Groove Music, or maybe even the Mail app, and it will render those apps mostly useless. It’s a well-known fact that such apps aren’t really known for stability, so this is to be expected, even though this kind of apps have been around for a few years already.
If you try to search for this issue, you will get a number of solutions. Note, however, that most of them are there to solve the situation when you get this due to a driver-related problem, and not a Windows Store app. They won’t solve your problem, but the method below will, so follow the instructions step by step.
Re-register the Windows Store
To re-register the Windows Store, you will need an Administrator Command Prompt, and a couple of commands. The commands should be written exactly as they are, and they are case sensitive, so make sure not to make mistakes.
- Press the Windows key on your keyboard, and type cmd. Don’t open the result, but instead right-click it, and choose Run as administrator.
- From within the Command Prompt you just opened, type the following commands, each followed by pressing Enter on your keyboard in order to execute it.
PowerShell -ExecutionPolicy Unrestricted $manifest = (Get-AppxPackage Microsoft.WindowsStore).InstallLocation + ‘\AppxManifest.xml’ ; Add-AppxPackage -DisableDevelopmentMode -Register $manifest
- When both commands are done executing, close the command prompt and reboot.
This issue usually appears randomly with various Store apps, but if it happens to you it might render your specific app useless, and that is never a good thing. What you need to do is follow the method above, and you will solve the problem.