Has anybody experienced the same? Yesterday, Sept 25th 2020, I was asked to install an Apple security update (I am still using macOS Mojave and no, I don't plan to change that yet). Afterwards, my computer was incredibly sloooow, I saw the beachball of death for ages. In the end, I was so frustrated that I had to reinstall the system from the previous TimeMachine backup. Is anything wrong with this update?
Mac mini, macOS 10.14
I had a similar experience.
I installed the update and immediately my 21.5" (late 2013) iMac became unusable (beach balling on every mouse click; my Time Machine backup disk showed NO backups had been made; EtreCheck showed MAJOR issues; etc., etc.)
I spent several hours running Apple H/W diagnostics, booted into Recovery Mode and ran Disk Utility on both my Macintosh HD and Time Machine backup disks;. No H/W errors or disk errors were reported.
I then used Recovery Mode to reinstall my last Time Machine backup image just before I installed the last Security Update, and now everything is operating normally again.
I have NO third party S/W installed on my iMac -- I have no idea why this particular update "bricked" my system.
I had a similar experience.
I installed the update and immediately my 21.5" (late 2013) iMac became unusable (beach balling on every mouse click; my Time Machine backup disk showed NO backups had been made; EtreCheck showed MAJOR issues; etc., etc.)
I spent several hours running Apple H/W diagnostics, booted into Recovery Mode and ran Disk Utility on both my Macintosh HD and Time Machine backup disks;. No H/W errors or disk errors were reported.
I then used Recovery Mode to reinstall my last Time Machine backup image just before I installed the last Security Update, and now everything is operating normally again.
I have NO third party S/W installed on my iMac -- I have no idea why this particular update "bricked" my system.
Had very similar experience on a 2015 MacBook Pro. Problem is, I can't get it working properly again, even after stepping back to earlier version.
Rebooted, reset power manager, pram reset, wipe internal SSD and boot from Mojave installer (USB) or boot from Catalina installer (Internet Recovery) and in all cases the machine is still slow with kernel task using 600+%. Fans going nuts.
I am worried that something firmware related was updated/changed and now the laptop is useless.
Prior to wiping the SSD, I cloned the drive to a 2013 Macbook Pro, and it boots and operates fine.
Whatever is going on, I will NOT install that update on anything else until Apple determines the cause.
Experience the exact same thing and also reinstalled the system from Time Machine. Not good enough,Apple. Obviously the update not tested before release.
Are they trying to force the upgrade to Catalina? I for one will not until all the problems have been attended to.
You are not alone and yes, there is a major problem with this update.
Check out the thread "Problem security update 2020-05 mojave" and you will find it has also been reported there.
I'm not a computer geek and am waiting for Apple to come up with a fix. Not confident with reinstalling.
Hello, "Holzbock"! ( I think you native language is german, isn't it?)
Well - yes! Actually I do have exactly the same problem, too!
And I already reported the problem to the Apple support and - hopefully - they will apply a patch in the next six to seven months.
To be honest: I had to reinstall the Mac during a "nightshift" by using command + R because it's "fun and game" computer without any important files on it; I just wiped out the harddisk and startet over again. Without the so-called "security update" almost everyting worked like a charm.
Unluckily the friend of my daughter came the next day and saw the red dot upon the gear. So he wanted to do me a favour and killed the machine again by installing the 2020-05. *phew*
I'm using a Retina Mac 2017 with a 21 inch screen.
Man - it's the first apple in years that I got from my wife as a birthday gift in 2019, because she intended to buy something really reliable. First I got struck down by installing Catalina and so I decided to stay with Mojave. Today Mojave has been brought down by the Apple "security update".
I'm starting to believe that Apple deliberately sabotages all former operating systems so that the launch of Big Sur looks like the only remaining lifeblood. Or why were all "old" macOS versions banned from the App Store?
THIS was my last Apple. I already have enough trouble with Microsoft. I don't need to open up a second battlefield for myself.
I feel really sorry for my wife, she just wanted to do something good for me! There is still Linux and Chrome OS ...
I'm deeply disappointed.
I gave in to temptation and installed Catalina.
And after about an hour my grip went furiously to the power switch and "command+R" saved the day just by reinstalling 10.14.6 without security update 2020-05. This was a real liberation for the performance of the Mac!
When will the next Steve Jobs come and remind the hipster programmers at Cupertino that instead of drinking soymilk Latte Machiato and using crayons in the little pony coloring book to create new designs all day long, to PROGRAM PROPERLY. When Apple's OS came mostly from disciplined Pascal programmers, it was much better! Not error-free, but so good that it advertised itself as a reliable tool.
Hello Klaus,
Yes, my native language is German (too?). :-)
Meanwhile it is evident that we are not alone. I fear that thousands of Apple/Mojave users worldwide have experienced similar problems with this so-called "security" update 2020-005 and with Safari 14. The more or less good news is that Apple now seems to have at last realized these problems and no longer offers the faulty products for download.
And yes, you may be right that this was an attempt by Apple to lure users away from good old Mojave and kind of force them to switch over to Catalina. Not a good policy in my opinion, since the vast majority of Mojave users simply can't upgrade because they still need certain 32-bit software which has not been adequately replaced by newer 64-bit products.
In my case, Apple was successful with regard to one of my computers: I did perform the upgrade to Catalina, although by this I have lost about seven useful applications. I am not entirely unhappy with Catalina but will stick with Mojave and El Capitan on other machines until I am absolutely convinced that Apple has solved all these problems.
I admit that in the last few days I also thought of ditching Apple (after having been a happy user for 32 years!). However, are the alternatives actually better? This was my first really deep disappointment with Apple, and so I will give them another chance. Perhaps you will do so too? :-)
That`s catch22 - isn't it?
If you own only ONE SINGLE computer that has been crashed by Apple, how do you contact them?
I mean it's the same funny joke as the computer support in your company writes on their website:
"Do you have problems concerning Outlook? Just send us an e-mail and we are going to fix it!"
😂
Try reinstalling this in Safe Mode, but not using Firefox...
https://itunes.apple.com/us/app/macos-mojave/id1398502828?mt=12
Safe Boot, (holding Shift key down at startup).
Post an EtreCheck report (Free mode is all you need)
or from the App Store
And post the EtreCheck report in an "Additonal Text" box
I have the exact same issue, but I don't have a Time Machine backup. :(
Newest 2020 security update, Mac incredibly slow
