Windows 10 users often encounter the frustrating 0x80073CFA error when trying to install or update Microsoft Store apps, particularly Microsoft Teams. This cryptic error code typically indicates a permissions conflict or corrupted system files blocking application management. Let's explore this Windows Store error in depth and walk through three proven resolution methods.

Understanding the 0x80073CFA Error

The 0x80073CFA error (sometimes displayed as "ERROR_INSTALL_PREREQUISITE_FAILED") occurs when Windows cannot verify or meet installation requirements for a Store app. Common triggers include:

  • Corrupted Windows Store cache
  • Incomplete previous installations
  • Permission issues with the WindowsApps folder
  • Conflicts with Windows App SDK (WinAppSDK) components
  • System file corruption

Microsoft's documentation suggests this is fundamentally a deployment issue within the Windows application framework. The error frequently appears with productivity apps like Microsoft Teams but can affect any Store application.

Method 1: Reset Windows Store Components

Step 1: Clear the Store Cache

  1. Press Win + R, type wsreset.exe, and press Enter
  2. Wait for the blank command window to close (indicates cache cleared)

Step 2: Re-register Store Apps

  1. Open PowerShell as Administrator
  2. Run:
Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
  1. Restart your computer

This refreshes all Store app registrations and often resolves underlying permission issues.

Method 2: Manual WindowsApps Folder Repair

Step 1: Take Ownership

  1. Navigate to C:\Program Files\WindowsApps
  2. Right-click → Properties → Security → Advanced
  3. Change owner to your account (check "Replace owner on subcontainers")

Step 2: Reset Permissions

  1. In Security tab, click Edit → Add → Enter "ALL APPLICATION PACKAGES"
  2. Grant Read & Execute permissions
  3. Repeat for "YourUsername" with Full Control

Step 3: Clean Up Residual Files

  1. Delete contents of C:\Users\[YourUser]\AppData\Local\Packages\MicrosoftTeams_8wekyb3d8bbwe
  2. Empty Recycle Bin

Method 3: System-Level Repairs

Option A: DISM & SFC Scan 

dism /online /cleanup-image /restorehealth
sfc /scannow

Option B: Reinstall Windows App SDK

  1. Download latest WinAppSDK from Microsoft
  2. Run installer with admin privileges
  3. Select "Repair" if available

Option C: Create New User Profile

  1. Go to Settings → Accounts → Family & other users
  2. Add a new local admin account
  3. Log in and test app installation

Preventing Future 0x80073CFA Errors

  • Regularly run Windows Store Apps Troubleshooter
  • Maintain at least 10GB free space on system drive
  • Avoid interrupting app updates
  • Keep Windows 10 fully updated (check for KB5005565 or later)
  • Consider using the WinGet CLI tool as alternative to Store
winget install Microsoft.Teams

When All Else Fails

If the error persists after trying all methods:
1. Backup important data
2. Perform an in-place Windows 10 upgrade
3. As last resort, clean install Windows 10 22H2 or later

Microsoft continues to refine app deployment in newer Windows versions, with 0x80073CFA becoming less common in Windows 11. Users stuck on Windows 10 should prioritize keeping their system updated until able to upgrade.