Fix Microsoft Store Error 0x80073cf9

How to Fix Microsoft Store App Installation Error 0x80073cf9
The 0x80073cf9 error is a common issue that prevents users from installing, updating, or downloading applications from the Microsoft Store. This error typically indicates a problem with the app’s package files or a conflict with the temporary installation folders. It’s a frustrating error because it can prevent a successful installation, causing the process to fail and roll back.

This guide will provide a series of effective solutions to resolve this error, ranging from simple cache resets to more advanced file system checks.

Understanding the Error 0x80073cf9
This error code points to a failure in the app’s package deployment process. The most common causes are:

Corrupted Microsoft Store Cache: The temporary files that the Microsoft Store uses to download and install apps are damaged.

Insufficient Disk Space: While the error message doesn’t directly state it, a lack of disk space on the system drive can cause installation failures.

Damaged AppX folders: The folders where Windows installs apps (C:Program FilesWindowsApps) are corrupted or have incorrect permissions.

Windows Update Problems: Issues with the Windows Update service can sometimes interfere with Microsoft Store functionality.

Step-by-Step Solutions
Solution 1: Clear the Microsoft Store Cache
Resetting the store’s cache is the simplest and most effective fix for many store-related errors.

Press the Windows key + R to open the Run dialog.

Type wsreset.exe and press Enter.

A blank Command Prompt window will appear for a moment, and then the Microsoft Store will open automatically. This indicates the cache has been cleared.

Try to install your app again.

Solution 2: Run the Apps Troubleshooter
Windows has a built-in troubleshooter specifically for Microsoft Store apps.

Ayarlar'ı açmak için Windows tuşu + I'ye basın.

Go to System > Troubleshoot > Other troubleshooters.

Scroll down and find “Windows Store Apps.”

Click “Run” and follow the on-screen instructions.

Solution 3: Re-register the Microsoft Store
If the store itself is corrupted, you can try to re-register it using a PowerShell command.

Press the Windows key + R, type powershell, and press Ctrl + Shift + Enter to open PowerShell as an administrator.

Copy and paste the following command into the PowerShell window and press Enter:
Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)AppXManifest.xml”}

Wait for the command to finish. You may see some red text, which can often be ignored.

Restart your computer and try the installation again.

Solution 4: Clean Up Temporary Files and Check Disk Space
Insufficient space can cause installation errors. Use Disk Cleanup to free up space.

Press the Windows key + R, type cleanmgr, and press Enter.

Select your C: drive and click OK.

Click “Clean up system files” and select the C: drive again.

Check all the boxes to remove temporary and unnecessary files, and click OK.

Sıkça Sorulan Sorular
Q: I get a message saying “wsreset.exe” cannot be found. What’s wrong?
A: This indicates a corrupted system file. Run the SFC and DISM tools (as detailed in previous guides) to repair your Windows installation files.

Q: The error happens on all my apps. Is there a bigger issue?
A: Yes, this points to a system-wide problem with the Microsoft Store or Windows Update. Try Solution 3 to re-register the store. If that fails, consider running the Windows Update Troubleshooter as well.

Q: I tried everything, and it’s still not working. What now?
A: As a last resort, a Repair Upgrade using the Windows Media Creation Tool may be necessary. This will reinstall Windows while preserving your personal files and applications. This can often fix deeply rooted system file corruption.

Çözüm
The 0x80073cf9 error is typically caused by a corrupted store cache or a damaged installation environment. By clearing the cache, running the built-in troubleshooters, and using powerful PowerShell commands to re-register the store, you can resolve the issue in most cases. If the problem persists, checking for disk space and performing a repair upgrade can provide a lasting solution.