I recently updated the El Capitan to 10.11.6 on my mid-'11 27"imac. The freezes continue. (By "freeze", I mean all the apps no longer respond--especially Safari. I restart and soon it happens again. Also have spinning ball a lot.) I just switched from Safari to Chrome, but have found the freezes still occurring — seemingly randomly.
(Usually Thunderbird, Calendar, and a browser are all open at once.)
iPad, Ipad Pages
Shut down your Mac. Use the power button if you need to. Now start it with the Shift key held down. This will start it into Safe Mode, with all extensions turned off. Safe Mode is slow to start, so give it time, it's checking a bunch of tasks. If it works OK in Safe Mode, restart normally. If it works now, you're done.
If the problem returns after restart, you might have an extension conflict. Turn off all extensions via System Preferences. To isolate which extension is at fault, turn on one extension at a time, restarting in between, until you find the bad one.
If starting in Safe Mode does not fix it, run Etrecheck and post its report here.
Most such problems are the result of other software. Seeing the report will give us a clue as to what may be causing this.
10.11.6 continues to freeze on mid-'11 27" imac
