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Fix Windows that has app that will not open

We'll run as administrator, check compatibility mode, repair or reinstall, and rule out antivirus—or tell you when to call support.

Troubleshooting · Home maintenance
10–25 min
What you'll need
  • Admin access to the PC
  • App installer or Microsoft Store access (if reinstalling)
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Steps

Goal: Run as administrator, check compatibility mode, repair or reinstall, and rule out antivirus.

  • Right-click the app, Run as administrator.
  • Good: The app opens. Create a shortcut with “Run as administrator” checked.
  • Bad: Proceed to Compatibility mode.

Run as administrator

Goal: Launch the app with elevated privileges.

  • Right-click the app shortcut or .exe, Run as administrator. If it opens, right-click the shortcut, Properties, Advanced, check “Run as administrator.”
  • Good: The app opens. You are done.
  • Bad: Proceed to Compatibility mode.

Compatibility mode

Goal: Run the app as if on an older Windows.

  • Right-click the app, Properties, Compatibility. Check “Run this program in compatibility mode for,” select Windows 8 or 7. Apply, OK. Try launching.
  • Good: The app opens. You are done.
  • Bad: Repair or reinstall the app. Check antivirus exclusion.

When to get help

Contact the app vendor or IT if:

  • Repair and reinstall fail.
  • The app shows a specific error you cannot resolve.
  • The app is work-managed.

Provide the app name, Windows version, and error message.

Verification

  • The app launches when double-clicked or from the Start menu.
  • No crash or error on startup.
  • App functions normally.

Escalation ladder

Work from the device outward. Stop when the problem is fixed.

  1. Run as admin Right-click, Run as administrator.
  2. Compatibility Properties, Compatibility, run for older Windows.
  3. Repair Settings, Apps, Repair the app.
  4. Reinstall Uninstall, reinstall from vendor or Store.
  5. Antivirus Add exclusion; check Event Viewer.
  6. Call support Vendor or IT if all steps fail.

What to capture if you need help

Before calling support or posting for help, have these ready. It speeds everything up.

  • App name and version
  • Windows version
  • Error message (if any)
  • Steps already tried

Does the app open when you Run as administrator?

Some apps need admin rights.

Right-click the app, Run as administrator. Opens: create a shortcut with "Run as administrator" checked. Still fails: try compatibility mode.

Yes No

You can change your answer later.

Try compatibility mode

For apps that worked on older Windows.

Right-click app, Properties, Compatibility. Check "Run in compatibility mode for," select Windows 8 or 7. Apply, OK. Try launching. Opens: done. Fails: repair or reinstall.

Yes No

You can change your answer later.

Repair or reinstall

Settings, Apps, find the app. Repair first. If that fails, uninstall and reinstall from vendor or Store. Check antivirus exclusion if still blocked.

Done

App opens

The app launches. You are done.

Done

Reviewed by Blackbox Atlas

Frequently asked questions

Why would a Windows app not open?
Needs admin rights, compatibility issue with Windows version, corrupted install, antivirus blocking, or missing dependencies. Try Run as administrator and compatibility mode first.
Can I fix an app that will not open myself?
Yes. Run as administrator, set compatibility mode, repair or reinstall the app, add antivirus exclusion. If the app is from the Microsoft Store, reset it in Settings.
When should I call support for an app that will not open?
If repair and reinstall fail, the app shows a specific error you cannot resolve, or the app is work-managed and requires IT.

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