Security Update 2020-001 High Sierra

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Level 1

4 points

Security Update 2020-001 High Sierra

I installed security update 2020-001 on High Sierra and now I can only boot in safe mode. When trying to boot normally I get the apple logo and a progress bar that gets about 75% of the way before the machine restarts and tells me there was an error starting and then the process repeats.

I can boot in safe mode and have run disk utility and turned off login items but the problem persists. Any suggestions?

I have verified that the security update did install.

MacBook Pro

Posted on Feb 11, 2020 9:15 AM

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Answer 1

Best reply

BDAqua

Level 10

241,037 points

Feb 11, 2020 7:24 PM in response to smallieBiggs

Uhhhg, big problems...

Failing hard drive - This machine has a hard drive that appears to be failing.

No Time Machine backup - Time Machine backup not found.

Get an external drive & backup asap.

You eventually want to delete the 2 files in the Clean up: section, but I'd not even use the Mac until you get a backup!

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Answer 2

VBsunset

Level 1

47 points

Feb 16, 2020 7:10 AM in response to smallieBiggs

You're not alone. This has been a problematic update for other users. Reference this Apple Community Support page. There's some very good info. on it that should help.

https://discussions.apple.com/thread/251107470

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Answer 3

BDAqua

Level 10

241,037 points

Feb 11, 2020 12:08 PM in response to smallieBiggs

All 4 are pointing to xpcproxy, that's a built-in component of OS X's protection.

I'd say a Reinstall of the OS is needed or...

EtreCheck is a simple little app to display the important details of your system configuration and allow you to copy that information to the Clipboard. It is meant to be used with Apple Support Communities to help people help you with your Mac.

http://www.etresoft.com/etrecheck

Pastebin is a good place to paste the whole report...

https://pastebin.com/

Or use the paperclip at the bottom of a Reply to attach the full report here. :)

Workable but harder for me to work with...the Note tool on the bottom of this editor's toolbar, as shown in the image, to copy and paste the output from EtreCheck.

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