Skip to content

Fixing “Out of Memory” Errors on Mac

Issue Description 

Mac displays memory warnings or apps quit unexpectedly. 

Common Causes 

  • Too many apps running 
  • Memory leaks 
  • Insufficient RAM 

Step-by-Step Solution 

Step 1: Check Memory Pressure 

  • Open Activity Monitor → Memory 
  • Red pressure indicates RAM exhaustion 

 

Step 2: Quit Memory-Heavy Apps 

  • Sort by Memory 
  • Quit top memory consumers 

 

Step 3: Disable Startup Apps 

  • System Settings → General → Login Items 
  • Remove unnecessary items 

 

Step 4: Restart Mac 

  • Clears memory completely 

Explore Further 

  • Upgrade RAM (older Macs) 

Prevention & Best Practices 

Close unused apps regularly.