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Quick Answer

Right-click the Start button, open Task Manager, find the frozen app in the list, right-click it, and select End task. Wait 10 seconds and try opening the app again.

How to Troubleshoot Apps That Won't Open or Keep Crashing on Windows ​

Applies to: Windows 11, Windows 10
Article Type: Troubleshooting
Last Updated: 2026-05-17

Summary ​

This article provides a step-by-step guide to diagnose and fix applications that fail to open, freeze on launch, or crash unexpectedly on Windows. It covers universal methods that work for any app — including Microsoft Store apps, desktop applications, and third-party software.

Prerequisites ​

  • Windows 11 or Windows 10.
  • The app in question is installed on your computer.
  • An active internet connection (for app repair and reinstallation steps).
  • No admin rights are required for any step in this article. Steps that require admin access are marked as escalation points.

Instructions ​

1. Force-Close the App with Task Manager ​

A stuck process from a previous session can prevent an app from opening. Ending it in Task Manager clears the way.

  1. Press Ctrl + Shift + Esc to open Task Manager.
  2. If Task Manager opens in simplified view, click More details at the bottom.
  3. In the Processes tab, look for the app name under Apps or Background processes.
  4. Click the app name to select it.
  5. Click End task in the top-right corner (or right-click and select End task).
  6. Wait a few seconds, then try opening the app again.

Verification: The app no longer appears in the Task Manager process list. Launching it now starts a fresh instance.

2. Restart Your Computer ​

A restart clears temporary memory, releases locked files, and resets system services that may be interfering with the app.

  1. Save any open work in other applications.
  2. Click Start > Power > Restart.
  3. Wait for the computer to fully restart and reach the desktop.
  4. Try opening the app again.

Note: Use Restart, not Shut down. Windows 11 uses Fast Startup by default, which means a shut down does not fully clear the system state. A restart performs a full reset.

3. Repair the App via Windows Settings ​

Windows can detect and fix common installation problems for many apps without requiring a full reinstall.

  1. Press Windows + I to open Settings.
  2. Click Apps > Installed apps (Windows 11) or Apps > Apps & features (Windows 10).
  3. Scroll through the list or use the search bar to find the problem app.
  4. Click the three-dot menu (⋯) next to the app name and select Advanced options.
    • If Advanced options is not available, skip to Method 4 — not all apps support this feature.
  5. Scroll down to the Repair button and click it.
  6. Windows runs a repair process. Your app data and settings are preserved.
  7. After the repair completes, try opening the app again.

Verification: A checkmark appears next to the Repair button when the process finishes successfully.

4. Reset the App (Clear All Data) ​

If repairing did not work, resetting the app clears its cached data, settings, and login state. This restores it to a fresh-install condition.

  1. Open Settings > Apps > Installed apps.
  2. Find the problem app, click the three-dot menu (⋯), and select Advanced options.
  3. Scroll down to the Reset button and click it.
  4. A warning appears: "This will permanently delete the app's data on this device, including your preferences and sign-in details." Click Reset to confirm.
  5. After the reset completes, open the app. You may need to sign in again and reconfigure your preferences.

WARNING

Resetting an app deletes all local data for that app, including saved preferences, cached files, and sign-in tokens. For apps like mail clients or note-taking apps, your cloud-synced data is not affected — it re-downloads after you sign in again.

5. Re-Register Microsoft Store Apps ​

If a Microsoft Store app (such as Calculator, Photos, Mail, or Sticky Notes) is crashing or missing, re-registering all Store apps can repair broken installations.

  1. Click the Start button and search for PowerShell.
  2. Open Windows PowerShell (the standard version — admin access is not required for this command).
  3. Copy and paste the following command and press Enter:
    Get-AppxPackage -AllUsers | ForEach-Object { Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppxManifest.xml" -ErrorAction SilentlyContinue }
  4. Wait for the command to finish — this may take one to two minutes. Ignore any red error text for apps that are already registered.
  5. Restart your computer.
  6. Try opening the problem app again.

Verification: The Store app opens normally after re-registration. If the app was missing from the Start menu, it reappears.

6. Check for Windows and App Updates ​

An outdated app or a pending Windows update can cause compatibility crashes.

Update the App ​

  1. Open the Microsoft Store app from the Start menu.
  2. Click Library in the bottom-left corner.
  3. Click Get updates in the top-right corner.
  4. Wait for all updates to download and install.
  5. For non-Store apps (e.g., Adobe, Chrome, Zoom), open the app and check its built-in update mechanism (usually found under Help > Check for updates or Settings > About).

Update Windows ​

  1. Open Settings > Windows Update.
  2. Click Check for updates.
  3. Install any available updates and restart if prompted.

Verification: The app version number increases after updating. Check via the app's Settings > About page.

7. Uninstall and Reinstall the App ​

If none of the above methods resolve the issue, a clean reinstall replaces all app files.

  1. Open Settings > Apps > Installed apps.
  2. Find the problem app, click the three-dot menu (⋯), and select Uninstall.
  3. Follow the prompts to complete the removal.
  4. Restart your computer.
  5. Reinstall the app:
    • Microsoft Store apps: Open the Microsoft Store, search for the app, and click Install.
    • Desktop apps: Download the installer from the official website and run it.
  6. Open the app and verify it launches correctly.

8. Escalation — When to Contact IT ​

If the app still crashes after following all methods above, the issue may require administrator access. Contact your IT team and provide:

  • The exact error message (take a screenshot).
  • The app name and version.
  • The steps you already tried from this article.
  • Whether the issue started after a specific event (e.g., Windows update, new software install).

Your IT team can investigate deeper causes such as corrupted system files (sfc /scannow), group policy conflicts, and driver issues.

Troubleshooting ​

DANGER

Always start with Method 1 (Force-Close) and Method 2 (Restart) before trying more invasive fixes. Most app crashes are resolved by ending a stuck process or restarting the computer.

Symptom / ErrorPotential CauseSolution
App icon does nothing when clickedStuck background processOpen Task Manager (Ctrl + Shift + Esc), end the app process, and relaunch.
"This app can't open" errorStore app registration corruptedRe-register Store apps using the PowerShell command in Method 5.
App crashes immediately after openingCorrupted app cache or settingsReset the app via Settings > Apps > Advanced options > Reset (Method 4).
App stopped working after a Windows updateCompatibility issue with updateCheck for an app update in the Microsoft Store or the app's website. If the update is the cause, ask IT to roll it back — give them the app name and the KB number from Update history.
"Advanced options" is not available for this appDesktop app (non-Store)Uninstall and reinstall the app (Method 7). Desktop apps do not support the built-in Repair/Reset feature.
Multiple apps crashing simultaneouslySystem-level issueRestart the computer (Method 2). If the problem persists, contact IT for system file repair.