My iMac keeps restarting, what to do?

abraham65 wrote:

Hi all,

so my imac was so slow and unresponsive that i had to do a full disk erase and then was able to reinstall the os.

everything seems to running a lot better. here is the new Etrecheck report. i dont fully understand it but seems a lot better than the original one. thanks for all your help.

That is a tremendous improvement and I would definitely expect you to be able to notice. By cleaning up your system, your drive speed is now at:

Write speed: 662 MB/s

Read speed: 2641 MB/s

Compared to:

Write speed: 115 MB/s ⚠️

Read speed: 138 MB/s ⚠️

There is really nothing else you need to do. In my opinion only, I would uninstall MalwareBytes. It is a great program and I use it as well, but only for a single scan and not to run on my computer constantly. It is no secret when you download Malware, as the whole purpose is to make itself known with continued pop-ups and/or advertisements to get you to download more software. When that occurs a single scan of MalwareBytes will remove it.

https://support.malwarebytes.com/hc/en-us/articles/360039025233-Uninstall-Malwarebytes-for-Mac-v4

Anyways, glad you got your Mac back!

Your computer came with Apple's Fusion drive but is running—barely— far below expected Fusion speeds. Your drive scores:

Performance:

System Load: 2.98 (1 min ago) 3.22 (5 min ago) 2.76 (15 min ago)

Nominal I/O usage: 0.46 MB/s

File system: 130.00 seconds (timed out) ⚠️

Write speed: 115 MB/s ⚠️

Read speed: 138 MB/s ⚠️

A healthy Fusion drive on that model with your specs should be doing Writes between 600 and 900Mb/sec, and Reads up to 2000MB.sec. Yours is running as speeds that suggests it is running off the mechanical Fusion component alone.

You can try the fix for a "split" Fusion drive:

How to fix a split Fusion Drive - Apple Support

Anti-virus software may slow drive performance and could be masking other issues. It has to go.

Here I am seeing install dates long before your computer was made, likely due to Migration Assistant used on an older Mac:

Internet Plug-ins:

AdobeExManDetect: AdobeExManDetect 1.1.0.0 (? - installed 2018-09-24)

AdobeAAMDetect: 3.0.0.0 (Adobe Inc. - installed 2024-02-19)

EPPEX Plugin: 3.0.5.0 (? - installed 2012-09-23)

CANONiMAGEGATEWAYDL: 3.1.0.2 (? - installed 2009-09-08)

iPhotoPhotocast: 7.0 (Apple - installed 2014-02-08)

DFusionWebPluginS64: (? - installed 2009-12-14)

OfficeLiveBrowserPlugin: 12.3.6 (? - installed 2014-07-15)

DFusionWebPlugin: (? - installed 2009-12-14)

Silverlight: 4.0.50917.0 (? - installed 2010-11-26)

Easy-WebPrint EX: 1.1.0 (? - installed 2011-06-17)

JavaAppletPlugin: Java 8 Update 181 build 13 (? - installed 2023-08-10)

If you need them update them, If not, lose them.

Well you have made your computer a mess. Here is what I see initially:

Malware - Malware detected. You need to download Malwarebytes and run it.

Security updates disabled You need to backup the computer then restart in the recovery partition and install Mac OS to fill in the damaged and disable portions that were caused by someone messing with Mac OS.

Using Transmission to download torrents and not having security updates enabled is a recipe for disaster. Also remove Intego Netbarrier as it does no good. After you enable your security updates, remove Net Barrier, and run the free version of MalwareBytes to remove the malware you currently have, then repost the updated EtreCheck report.

In addition get rid of NetBarrier. (Intego) Not needed.