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How to Fix Cannot Open Apps Error After Windows 8.1 and Windows 10 Update: Step-by-Step Solutions

After updating Windows 8.1 or Windows 10, you might face an issue where apps refuse to open. This can be frustrating, especially if you rely on certain apps daily. Fortunately, there are simple steps you can take to fix this problem.

This article will guide you through easy and detailed solutions to resolve the “Cannot Open Apps” error. Each step is explained clearly, so even beginners can follow along without confusion.

By following these instructions in order, you can restore your apps quickly and get back to work or entertainment without delay.

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

Quick Note

  • Make sure your Windows update has fully completed and your PC has restarted at least once after installation.
  • Check your internet connection; some apps need to connect online to run properly.
  • Ensure that your Windows license is activated, as non-activated copies may restrict app functionality.
  • Backup any important files before proceeding with advanced troubleshooting steps.

Step 1: Restart Your Computer

Sometimes the simplest fix is a restart. Restarting clears temporary glitches or conflicts that occurred during the update.

  1. Click the Start button.
  2. Select Power and then click Restart.
  3. Wait for your PC to reboot and try opening the apps again.

Step 2: Run the Windows Store Apps Troubleshooter

Windows includes a built-in troubleshooter designed to detect and fix issues with apps.

  1. Press Windows Key + I to open Settings.
  2. Click Update & Security.
  3. Select Troubleshoot from the left menu.
  4. Click Additional troubleshooters.
  5. Find and select Windows Store Apps, then click Run the troubleshooter.
  6. Follow the on-screen instructions and apply any fixes suggested.

This tool checks for common problems like corrupted cache or app registration errors.

Step 3: Reset the Problematic App

If a specific app won’t open, resetting it can fix corrupted settings without deleting your data.

  1. Open Settings and go to Apps.
  2. Under Apps & features, locate the app that won’t open.
  3. Click the app, then select Advanced options.
  4. Scroll down and click Reset.
  5. Confirm the reset and try launching the app again.

Resetting clears the app’s stored data, which often resolves launch issues.

Step 4: Re-register All Windows Apps

Sometimes Windows apps get deregistered after updates. Re-registering them can restore functionality.

Here’s how to do it:

  1. Type PowerShell in the Start menu search.
  2. Right-click Windows PowerShell and select Run as administrator.
  3. Copy and paste the following command exactly, then press Enter:
Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)AppXManifest.xml"}

This command re-registers all built-in Windows apps for all users. Wait until the process finishes.

After it completes, restart your computer and try opening apps again.

Step 5: Check and Repair System Files

Corrupted system files can cause apps to fail. The System File Checker (SFC) tool scans and repairs these files.

  1. Open Command Prompt as administrator:
    • Search for cmd in the Start menu.
    • Right-click Command Prompt and choose Run as administrator.
  2. Type the following command and press Enter:
sfc /scannow

The scan can take some time. Once complete, it will report if it found and fixed any problems.

Restart your PC and check if apps now open properly.

Step 6: Update Windows and Apps

Sometimes, additional updates fix bugs introduced in previous updates.

  1. Go to Settings > Update & Security > Windows Update.
  2. Click Check for updates and install any available.
  3. Next, open the Microsoft Store.
  4. Click the three dots in the top-right corner and select Downloads and updates.
  5. Click Get updates to update your apps.

Keeping your system and apps up to date ensures better compatibility and fewer errors.

Alternative Method: Create a New User Account

If the problem persists, your user profile may be corrupted.

  1. Open Settings and navigate to Accounts > Family & other users.
  2. Click Add someone else to this PC.
  3. Follow the prompts to create a new local user account.
  4. Sign out and log into the new account.
  5. Try opening apps to see if they work in this new profile.

If apps work here, you can transfer your files and settings to the new account.

FAQs

Why can’t I open apps after a Windows update?

Updates sometimes cause conflicts with app files or permissions, or corrupt app registrations. This can prevent apps from launching correctly.

Will uninstalling and reinstalling the app fix the issue?

Yes, uninstalling and reinstalling can help, especially if resetting or re-registering doesn’t work. However, some built-in apps cannot be uninstalled easily.

Is it safe to run PowerShell commands for re-registering apps?

Yes, the command provided is a standard Windows fix. Run it only as an administrator and carefully copy the command to avoid errors.

Can third-party antivirus software cause this problem?

Sometimes, antivirus programs block app processes. Temporarily disabling antivirus or adding app exceptions might help diagnose this.

Do I lose any data when resetting an app?

Resetting an app typically deletes its saved data and preferences, so use this option if you are okay with losing app-specific data.

When Nothing Works

If none of the above solutions fix the problem, consider the following:

  • Perform a system restore to a point before the update caused the issue.
  • Use the Reset this PC feature in Settings to reinstall Windows while keeping your files.
  • Visit the official Microsoft support page for further assistance: https://support.microsoft.com/windows.
  • Consult a professional technician if you are uncomfortable performing advanced repairs.

Conclusion

Facing app launch issues after a Windows update can be annoying, but most problems can be fixed with simple steps. Start with restarting your PC and using the built-in troubleshooter.

Resetting apps, re-registering them via PowerShell, and repairing system files are effective ways to restore app functionality. Keeping your Windows and apps updated also prevents recurring errors.

By following this guide carefully, you should be able to resolve the “Cannot Open Apps” error and enjoy a smooth Windows experience once again.

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