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How to Fix "Not Responding" Application Errors
4 min read
Updated 8 January 2026
When Programs Stop Responding
A frozen or "Not Responding" application doesn't react to clicks or keyboard input.
Wait First
Sometimes programs temporarily freeze while:
- Processing large files
- Loading data
- Completing complex operations
If Waiting Doesn't Work
Force Close the Application
Windows:
- Press Ctrl + Shift + Escape to open Task Manager
- Find the frozen application
- Click on it to select
- Click End Task
- Press Command + Option + Escape
- Select the frozen application
- Click Force Quit
Save Your Work First (If Possible)
Before force closing:
- Try switching to other windows
- See if you can save work in other apps
- Note what you were working on (you may need to redo it)
After Force Closing
Restart the Application
- Wait a moment
- Reopen the application
- Check for recovered files (many apps auto-recover)
Look for Auto-Saved Files
Many applications auto-save:
Microsoft Office:
- Opens Document Recovery panel
- Shows auto-saved versions
- Click to recover
- Check for backup files
- Look in temp folders
- Application may prompt recovery on restart
Preventing Freezes
Close Unused Programs
Too many open programs can cause issues:
- Close apps you're not using
- Watch for browser tabs (each uses memory)
- Restart your computer weekly
Keep Software Updated
Updates often fix performance issues:
- Install Windows updates
- Update your applications
- Let IT maintain your computer
Don't Overload Applications
- Work with reasonably sized files
- Close and reopen large spreadsheets periodically
- Split very large documents if possible
When to Worry
Occasional Freezes
Normal - just restart the app and continue.
Frequent Freezes
May indicate:
- Not enough memory
- Software conflicts
- Computer issues
- Time to contact IT
System Freezes (Whole Computer)
If your entire computer freezes:
- Wait 2-3 minutes
- Try pressing Ctrl + Alt + Delete
- As last resort, hold power button for 10 seconds
- Contact IT if it happens often
Need Help?
If applications freeze frequently, contact helpdesk@netlumait.com.au or call 1300 521 162.
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