Help me fix a slow Mac!
January 10, 2011 6:01 AM Subscribe
How do I fix a slow iMac?
posted by bwg to computers & internet (16 answers total) 10 users marked this as a favorite
1. I updated to OS X 10.6.6.
Immediately boot times were insanely slow and when the system finally booted all apps loaded slow, got beachballs on every mouse click, and it killed Thunderbird 3.1.7 (crashed on load; profile fixes did not work).
2. Long story short: after numerous fix attempts I had to restore from Time Machine. Today I worked on the box: I reverted to Thunderbird 3.1.6, which worked; I combed through the files, purging orphans; I killed Spotlight, which seemed to speed things up a bit; I reset PRAM and NVRAM; I ran OnyX to clean everything, fix permissions and verify the drive (OK).
Boot times are much shorter now, but the system still lags. Apps take far too long to open, and I have left Spotlight disabled.
I've Googled everything in the book but nothing seems to bring the system back up to speed.