Ilovesony Said:
"Macbook fan running fas and performance low: I have macbook air mid 2013 11”. It was working super fine yesterday I put it into sleep mode and after few hours I opened it, the mac was running very slow and fan was super fast. I restarted the mac, reset it and still the condition is same. Also the performance is same in safe mode."
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Troubleshooting Lagging Mac:
A. Try Safe Mode:
In Safe Mode, login items do not run, and corrupt system files(i.e. caches) are intentionally reset as a way to fix issues
- Boot: in to Safe Mode: [Hold Down: shift key upon boot].
- Log in: as same user
- Wait: 30 seconds
- Restart; your Mac
- Log in: as same user
B. See if your Hard drive is Failing:
What to Try:
- Boot: into Recovery Mode. Go Here: How to Use Safe Mode on your Mac- Apple Support
- Select: Disk Utility
- Select: the Drive
- Click: First Aid button
C. Remove Login Items:
While in Safe Mode, remove all of your Login Items, and then restart the Mac. Go Here: Change Users & Groups Login Items Preferences on Mac - Apple Support