How to Fix Windows Store Error 0x80073CF9: A Step-by-Step Guide

Encountering error 0x80073CF9 while using the Microsoft Store was very frustrating. This error often arises due to system file corruption, missing or misconfigured folders, or software conflicts. In my case, I couldn't figure what happened, but i figured the solution:

1. Verify and Create the AUInstallAgent Folder

One common cause of this error is a missing folder required by the Store. Follow these steps to ensure it's in place:

1. Navigate to C:\Windows.
2. Check if a folder named AUInstallAgent exists.
3. If not, create it:
   • Right-click in the window > New > Folder.
   • Name the folder AUInstallAgent.

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2. Reset the Microsoft Store

Resetting the Store can clear temporary glitches and restore its functionality. Here's how:

1. Open Command Prompt or PowerShell as an administrator.
2. Type the following command and press Enter:

   wsreset.exe
   

3. The Store will reopen automatically after a few seconds.

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3. The Solution That Worked for Me: Reinstalling the Store

If the previous methods don’t resolve the issue, reinstalling the Store might be the fix you need:

1. Open PowerShell as an administrator.
2. Uninstall the Store:

   Get-AppxPackage *windowsstore* | Remove-AppxPackage
   

3. Reinstall the Store:

   Get-AppxPackage -allusers Microsoft.WindowsStore | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}