CleanMyMac: Buyer Beware

I'm extremely frustrated with CleanMyMac. About a week ago, I started having issues whereby powering up my peripheral hard drives were causing my iMac to freeze and restart. I'm a professional photographer and all of my images are on my external hard drives so it's been incredibly disruptive not to be able to access my images. I purchased new Thunderbolt cables, spent long conversations with AppleCare, and began systematically disabling all my extensions and plug-ins, and uninstalling all my third-party software including Photoshop and Lightroom. It was very very time-consuming. I even tried to use CleanMyMac to get to the bottom of it. Finally, I decided to uninstall CleanMyMac, and lo and behold my peripherals are working again. This is a serious flaw in the software. Once Apple deduced that it wasn't a hardware or operating system error by booting up my computer in safe mode, they said the only way to figure out what was causing the issue was to uninstall my software one by one and keep testing it, which I did, but I lost days of productivity in the process. I was actually ready to buy a new computer thinking my thunderbolt ports have been fried. If your computer suddenly starts repeatedly restarting (what I'm told is called kernel panic), this might be your issue as well.

iMac 27″, macOS 10.15

Posted on Aug 18, 2022 11:30 PM

Reply
Question marked as Top-ranking reply

Posted on Aug 23, 2022 2:54 AM

I experienced the exact same thing. I had been using and trusting CleanMyMac for almost two years. It seems that an update was installed around August 11, which caused the freeze with Thunderbolt 2 connected drives.


I feel your frustration – I am a professional composer for film and theatre and lost three days of work myself. It happened to both my Macs at the same time. The disks worked just fine if I took them out of their chassis and connected them to a quirky USB docking station, but that was no solution - I use a ThunderBay chassis by OWC which houses 4 disks at the same time, and depend on it 100% every day.


I'm so happy I found the solution at last, after days of troubleshooting, but at the same time so disappointed in CleanMyMac for producing this kind of behaviour. It's kind of shocking that no one at MacPaw bothered to test their new software version with Thunderbolt drives, and that we alone had to figure this out for ourselves.

Similar questions

9 replies
Question marked as Top-ranking reply

Aug 23, 2022 2:54 AM in response to mycelium13

I experienced the exact same thing. I had been using and trusting CleanMyMac for almost two years. It seems that an update was installed around August 11, which caused the freeze with Thunderbolt 2 connected drives.


I feel your frustration – I am a professional composer for film and theatre and lost three days of work myself. It happened to both my Macs at the same time. The disks worked just fine if I took them out of their chassis and connected them to a quirky USB docking station, but that was no solution - I use a ThunderBay chassis by OWC which houses 4 disks at the same time, and depend on it 100% every day.


I'm so happy I found the solution at last, after days of troubleshooting, but at the same time so disappointed in CleanMyMac for producing this kind of behaviour. It's kind of shocking that no one at MacPaw bothered to test their new software version with Thunderbolt drives, and that we alone had to figure this out for ourselves.

Aug 23, 2022 7:51 AM in response to John Galt

Granted, but *this* very issue with Thunderbolt disks causing the Mac to freeze and reboot, in my experience is new. It started happening with both my Macs after a CleanMyMac X update installed around August 11th. After three days of troubleshooting, CleanMyMac X was clearly the culprit. My guess is some background script that kept scanning all mounted disks, suddenly couldn't handle Thunderbolt connections anymore, causing a system panic at the first sight of a TB connected drive. Uninstalled forever 💾

Aug 23, 2022 8:32 AM in response to BobTheFisherman

Yeah, but it's not all black and white. CMM is not MacKeeper. It has some good features that I've enjoyed having, like the Space Lens. The OP issue is new and incredibly serious for us who depend on Thunderbolt drives. I haven't seen it documented online before this thread. It confirmed my own conclusions and I was just glad to see I was not alone. Peace out... 🕊

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

CleanMyMac: Buyer Beware

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.