El Capitan After last security update the Mac freezes

Question

Level 1

12 points

El Capitan After last security update the Mac freezes

Hello to all,

I have a MacBook Pro early 2011(2.2 GHz Intel Core i7). It has El Capitan 10.11.6 with 16Gb of RAM. A few days ago I applied the last security update from the App Store. Since then, it will not complete the boot up process. In fact it freezes on the welcome screen just after entering my password. Before applying the security update, it worked perfectly.

I've noticed that, while the wheel spins endlessly, the temperature of the Mac rises quite a bit.

I've tried the following actions to no avail:

1) Resetting the NVRAM

2) A safe boot

3) Running Disk Utility in Recovery Mode

4) File system consistency check restarting while holding Command+S

Can someone help ? Thank you

MacBook Pro, OS X El Capitan (10.11.6), 17'' early 2011

Posted on Sep 15, 2016 7:02 AM

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Answer 1

CarlAVII

Community Specialist

Sep 15, 2016 7:30 PM in response to Malkovitch

Hi Malkovitch!

I see that your MacBook Pro is not starting up correctly after having installed the latest security update. I know how important it is to have your MacBook Pro working right, so I'm happy to offer some help. You've done an excellent job troubleshooting so far, but I do have a couple of suggestions. First, if you've recently made any changes to the MacBook Pro's configuration such as installing new RAM/Memory, you should reinstall the original memory to see if that resolves the issue. If you have not changed the hardware configuration, the next step would be to reinstall OS X. It's not necessary to erase the hard drive first, and you can follow the instructions in this article under the header "If you're reinstalling for other reasons":

How to reinstall OS X

Thanks for using Apple Support Communities.

Cheers!

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Answer 2

Malkovitch Author

Level 1

12 points

Sep 16, 2016 9:51 AM in response to CarlAVII

Hello Allen A.

I did a reinstall of OS X, as suggested. Unfortunately it did not work and I'm still stuck. Any other suggestion short of erasing the volume and doing a clean install ?

I noticed something else while backing up some files before the reinstall. All the modification dates are set to a unique date -> 05 jan 2016. Any clue ?

Thank you for your answer !

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Answer 3

Jeff_W.

Community Specialist

Sep 16, 2016 12:18 PM in response to Malkovitch

Erasing and reinstalling OS X are indeed the next steps, and I'm glad to hear you were able to back up your files. You can use those same instructions above for the reinstall process.

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Answer 4

Eric Root

Level 10

685,293 points

Sep 16, 2016 2:46 PM in response to Malkovitch

Startup Issues - Resolve

Startup Issues - Resolve (2)

Startup Issues - Resolve (3)

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