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How to Fix Error 0x80073d21 on Windows 11: Effective Solutions That Work

If you are encountering the error code 0x80073d21 on Windows 11, it usually means there is a problem with app installation or updates. This error can be frustrating but is commonly fixable with some simple steps. Understanding the cause will help you resolve it quickly.

This article will guide you through effective solutions that work, starting from the easiest methods to more advanced troubleshooting. Each step is explained in a basic and clear way, so even if you are not tech-savvy, you can follow along.

Make sure to read through all the options before trying the more complex ones. Often, the issue can be fixed without requiring deep system changes.

Let’s get started with some quick notes before diving into the solutions.

Quick Note Before You Begin

  • Ensure your Windows 11 is up to date. Sometimes missing updates cause app installation errors.
  • Check your internet connection. A stable connection is necessary for downloading and updating apps.
  • Restart your computer before starting the troubleshooting process. This can clear temporary glitches.
  • Make sure you are logged in with an account that has administrator privileges.

Step 1: Run the Windows Store Apps Troubleshooter

Windows 11 includes a built-in troubleshooter specifically for app-related problems. This tool automatically detects and fixes common issues affecting the Microsoft Store and its apps.

  1. Click on the Start button and select Settings (gear icon).
  2. Go to System > Troubleshoot > Other troubleshooters.
  3. Find Windows Store Apps in the list and click Run.
  4. Wait for the troubleshooter to finish checking and follow any on-screen instructions.

This step is important because the troubleshooter can automatically identify corrupted files or settings that cause the error code.

Step 2: Reset the Microsoft Store Cache

If the Store cache is corrupted, it might block app installations or updates. Resetting the cache often fixes this problem.

  1. Press Windows + R to open the Run dialog box.
  2. Type wsreset.exe and press Enter.
  3. A blank Command Prompt window will open. Wait for it to close automatically.
  4. The Microsoft Store will open automatically once the cache is reset.

Resetting clears stored temporary files that may be causing the error without affecting your installed apps.

Step 3: Check for Windows Updates and Install Them

Missing Windows updates can lead to compatibility issues with apps. Ensuring your system is fully updated can resolve many errors.

  1. Open Settings from the Start menu.
  2. Navigate to Windows Update.
  3. Click Check for updates.
  4. If updates are available, click Download and install.
  5. Restart your PC if prompted.

Keeping Windows updated is crucial because updates often include bug fixes and improvements related to app management.

Step 4: Re-register Microsoft Store Using PowerShell

If the Store or app packages are corrupted, re-registering them can help. This process reinstalls necessary components without affecting your data.

  1. Right-click the Start button and select Windows Terminal (Admin) or PowerShell (Admin).
  2. Copy and paste the following command and press Enter:
Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)AppXManifest.xml"}

Wait until the command finishes running. This process may take a few minutes.

This command re-registers all built-in Windows apps, fixing any corrupted or missing files.

Step 5: Run System File Checker and DISM Tools

Sometimes, system files related to app installations get corrupted. Using these built-in tools can repair damaged files automatically.

  1. Open Windows Terminal (Admin) or Command Prompt (Admin).
  2. Type sfc /scannow and press Enter.
  3. Wait for the scan to complete. It will fix any corrupted system files it finds.
  4. After that finishes, type the following commands one at a time and press Enter after each:
DISM /Online /Cleanup-Image /ScanHealth
DISM /Online /Cleanup-Image /RestoreHealth

These commands check and fix the Windows image, which is important for smooth app functioning.

Alternative Methods

Temporarily Disable Antivirus Software

Sometimes, third-party antivirus programs interfere with app installations. Temporarily disabling them can help identify if they are causing the error.

  • Right-click your antivirus icon in the system tray and look for an option to disable it temporarily.
  • Try installing or updating the app again.
  • Remember to re-enable your antivirus afterward for security.

Create a New User Account

Corrupted user profiles can cause installation errors. Creating a new account helps check if the problem is user-specific.

  1. Go to Settings > Accounts > Family & other users.
  2. Click Add account under “Other users.”
  3. Follow prompts to create a new local or Microsoft account.
  4. Log out and sign in with the new account, then try installing the app.

Frequently Asked Questions (FAQs)

What causes error 0x80073d21 on Windows 11?

This error usually happens due to corrupted app packages, store cache issues, missing Windows updates, or conflicts with antivirus software.

Will resetting the Microsoft Store delete my apps?

No, resetting the Store cache only clears temporary files and does not affect your installed apps or data.

Is it safe to run PowerShell commands to fix this error?

Yes, the commands provided are safe and commonly used to repair Windows Store issues. Always run them with administrator rights.

Can I fix this error without reinstalling Windows?

In most cases, yes. The steps above usually resolve the problem without the need for a full Windows reinstall.

What should I do if the error persists after trying all steps?

Advanced troubleshooting or a system reset might be needed. Consider contacting Microsoft Support or visiting official forums for help.

When Nothing Works

If you have tried all the above steps and still face the 0x80073d21 error, here are some final options:

  • Use System Restore: Restore your PC to a previous point where everything was working fine. Go to Control Panel > Recovery > Open System Restore.
  • Reset Windows 11: This reinstalls Windows but lets you keep personal files. Access it via Settings > System > Recovery > Reset this PC.
  • Contact Microsoft Support: Visit the official Microsoft Support website for professional help.

Conclusion

Error 0x80073d21 on Windows 11 can interrupt your app installations and updates, but it is often fixable through simple troubleshooting steps. Starting with the Windows Store troubleshooter and resetting the cache can resolve many cases quickly.

Ensuring your system is updated and repairing corrupted system files further improves stability. If needed, re-registering Store apps or creating a new user profile can help isolate and fix deeper issues.

Remember to try the easier methods first and only move to advanced options if necessary. With patience and careful following of these solutions, you can get your Windows 11 apps working smoothly again.

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