OS X 10.11.5 Problems

Mac... nificent

macrumors 6502
Original poster
Nov 20, 2012
453
105
Tried updating to 10.11.5 last night. When it was done I could not use my computer. Everything I clicked on gave an error warning saying that the program was corrupt or missing. Even System Preferences wouldn't open. I am wondering how to diagnose this issue?
 

simon lefisch

macrumors 6502a
Sep 29, 2014
987
233
Tried updating to 10.11.5 last night. When it was done I could not use my computer. Everything I clicked on gave an error warning saying that the program was corrupt or missing. Even System Preferences wouldn't open. I am wondering how to diagnose this issue?
Restore your backup and maybe try the combo update from Apple site. That's how I update my Mac and haven't had any probs. I only download the first release of an OS from the App Store when it first comes out.

https://support.apple.com/downloads/macos
 

treekram

macrumors 68000
Nov 9, 2015
1,849
405
Honolulu HI
I had something similar happen once after an update and a complete shutdown - turning the computer off and on again - fixed the problem.
 

Mac... nificent

macrumors 6502
Original poster
Nov 20, 2012
453
105
Tried rebooting. Took forever to boot up and then it had the same issues. Hopefully the other source of download will work better.
 

dianeoforegon

macrumors 6502a
Apr 26, 2011
907
137
Oregon
I would boot from Recovery drive and run Disk Utility > Repair Disk to verify your drive.
Boot into the Recovery Drive by holding down Command R when restarting.

If your drive is OK, Download the full El Capitan installer from App Store.
Under Purchases tab, select El Capitan. It will ask if you want to download again. Click on Continue.
 

desertman

macrumors 6502a
Jul 14, 2008
639
21
Arizona, USA
Tried updating to 10.11.5 last night. When it was done I could not use my computer. Everything I clicked on gave an error warning saying that the program was corrupt or missing. Even System Preferences wouldn't open.
I have exactly the same issue (after updating with the combo updater which I downloaded directly from Apple's website).

I'm was not even able to boot into safe mode (not with a wireless keyboard, not with an Apple Bluetooth keyboard, not with an Apple wired keyboard).

The only thing that worked was booting into recovery mode where Disk Utility found nothing wrong with my hard drive. I'm right now restoring from my Time Machine backup back to OS X 10.11.4 which will take about five hours. What a f****p!
 

Mac... nificent

macrumors 6502
Original poster
Nov 20, 2012
453
105
After holding down the option key, choosing Recovery, then choosing Disk Utility and using it several times, I rebooted. It took around 5 minutes to boot up, but now it seems everything is working again. I used the combo update from the Apple site as linked by Simon above (post #2).
 
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