Miro Desktop App Not Opening or Blank Screen
Quick answer
The desktop app can hang on a grey or blank screen after updates. Reset app data from the Help menu, reinstall cleanly, or use the browser version meanwhile.
Most likely fix: Reset app data
How to fix it
Try these in order — the most common fix is first.
1. Reset app data
- Open the app and press Alt to show the menu on Windows
- Go to Help and reset application data
- Microsoft Store installs: Windows Settings > Apps > Miro > Advanced options > Reset
Did this fix it?2. Reinstall cleanly
- Uninstall Miro from Control Panel or Applications
- Delete the RealtimeBoard folder under AppData\Roaming on Windows
- Install the latest version from miro.com
Did this fix it?3. Check network and sign-in
- Turn off VPN, firewall or proxy and retry
- If SSO or magic-link sign-in loops, sign in through the browser first
- If the Windows app hangs on 'Send to this display', uncheck 'Public device' in the Help menu
Did this fix it?4. Work around it
- Use Miro in the browser; many users report the web version works when the app doesn't
- Contact Support with app version, OS and error text
Did this fix it?
Symptoms
The app won't launch, shows a blank/grey window, stays on sign-in, or crashes right after an update.
Why it happens
- Corrupted app data after an update
- VPN, firewall or proxy blocking the app
- Leftover files from an old install
- Version-specific bugs (reported on some Mac M1 and Windows builds)
- Sign-in or magic link loops
This guide also covers
- miro app not opening
- miro desktop app blank screen
- miro app crashing
- miro windows app not working
- miro mac app not loading
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