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Late 2015 iMac crashing


Topic starter

Hi guys brand new to the forum but lately my late 2015 iMac has been really struggling I tried to connect a SSD to my iMac via a USB enclosure it worked for a little while but every time my Mac would restart I'd get the message that the drive was unreadable by the computer and the choices to ignore, eject, and initialize.  But then it started to act weird so I had to fall back to the internal HDD now even with a fresh install of Catalina with no migration every time it goes to sleep and I wake it up my computer will freeze even the cursor won't move then it will unfreeze only to get a black screen with a red/yellow Apple logo with a progress bar then my computer restarts without the chime and all the programs I had open at the time will start back up.  The workaround I've found so far was to go into energy saver and prevent the Mac from sleeping when the screen shuts off and getting chewed out by Apple for wasting energy :D.  This computer is completely out of warranty apple care and original warranties.  I have three Apple stores in my area and I can take it in but I'm wondering how much it will cost me to get it fixed or is it more cost effective just to buy a new machine?  HELP!


Do you have panic reports?

Look for the Kernel Panic reports at:
Finder -> Go -> Go to Folder -> /Library/Logs/DiagnosticReports

If you have any, please post a few to see if they are the same or if they differ.

If this only happens when you are plugging in the external SSD, then I would suspect
A) the SSD
B) the SSD enclosure
C) the USB cable
D) if you are using a USB Hub, that is suspect then.

If you can swap out any of the components that is a way to isolation issues.

I have had issues with USB, especially if the USB cable is low quality, or if the USB cable is too long, or if the USB enclosure is failing.

You can try booting into Safe mode, but I suspect that is not going to change anything.
This will not load any 3rd party additions, it will load some more conservative Apple drivers (may cause screen flicker), and it will clear some kernel caches (a cache is saved data in a form that can speed up a program, but is totally redundant to the original source, and thus can be safely cleared). Booting into Safe mode is just an experiment, but can frequently eliminate any 3rd party interference, or a cached item out-of-sync with the world. (Verify Safe mode via Applications -> Utilities -> System Information -> Software -> Boot Mode -> Safe vs Normal)


Run EtreCheck
Look at all the 3rd party Kernel Extensions, Launch Agents, Launch Daemons, and Startup Items.
Be brutal and remove anything you absolutely do not need to do your work.
If you have an anti-virus package, I strongly suggest removing it.
Remove anything that runs all the time in the background, consuming your memory, CPU , disk I/O bandwidth, network bandwidth.

I actually ran that before doing this post and it had me save the report before exiting where can I find that document?

4 Answers
Topic starter

I don't see anything that says Panic reports in that folder I saw a couple that said shutdown stall but the problem doesn't only happen when the SSD is attached.  It would always happen when I would wake the Mac I,e, I was at work and came home and tapped a key on the keyboard.  That's when I would get the beach ball and the cursor freezing then after about 30 seconds to a minute it unfreezes and I have control for about maybe 2-3 seconds then it would get the screen with the red/yellow apple logo described above.  When I try to attach the reports to this post it says file type not allowed.  It hasn't happened since I told the Mac NOT to sleep.  

Topic starter

I can't get the forums to accept the file whether I drag it or try to upload it so I will paste it below

EtreCheck version: 5.4.4 (5063)

Report generated: 2019-11-06 2002

Download EtreCheck from

Runtime: 4:56

Performance: Below Average

Sandbox: Enabled

Full drive access: Disabled


Problem: No problem - just checking


Major Issues:

    Anything that appears on this list needs immediate attention.


    Antivirus software problems - Antivirus software is causing performance problems.


Minor Issues:

    These issues do not need immediate attention but they may indicate future problems or opportunities for improvement.


    Clean up - There are orphan files that could be removed.

    Low performance - EtreCheck report took an unusually long time to run.

    Limited drive access - More information may be available with Full Drive Access.


Hardware Information:

    iMac (Retina 4K, 21.5-inch, Late 2015)

    iMac Model: iMac16,2

    1 2.8 GHz Quad-Core Intel Core i5 (i5-5575R) CPU: 4-core

    8 GB RAM - Not upgradeable

        BANK 0/DIMM0 - 4 GB DDR3 1867 

        BANK 1/DIMM0 - 4 GB DDR3 1867 


Video Information:

    Intel Iris Pro Graphics 6200 - VRAM: 1536 MB

        iMac 1920 x 1080



    disk0 - APPLE HDD HTS541010A9E662 1.00 TB (Mechanical - 5400 RPM)

    Internal SATA 3 Gigabit Serial ATA

        disk0s1 - EFI (MS-DOS FAT32) [EFI] 210 MB

        disk0s2 [APFS Container] 1000.00 GB

            disk1 [APFS Virtual drive] 1000.00 GB (Shared by 5 volumes)

                disk1s1 - Macintosh HD (APFS) (Shared - 10.70 GB used)

                disk1s2 - Preboot (APFS) [APFS Preboot] (Shared)

                disk1s3 - Recovery (APFS) [Recovery] (Shared)

                disk1s4 - VM (APFS) [APFS VM] (Shared - 4.30 GB used)

                disk1s5 - B*p (APFS) [APFS Virtual drive] (Shared - 44.11 GB used)

    disk2 - OWC Express USB 3.0 1.00 TB

    External USB 5 Gbit/s USB

        disk2s1 [Partition Map] 32 KB

        disk2s2 999.94 GB

    disk3 - Seagate BUP Slim BK 1.00 TB

    External USB 5 Gbit/s USB

        disk3s1 - B*p (Journaled HFS+) 1.00 TB (62.22 GB used)


Mounted Volumes:

    disk1s1 - Macintosh HD

        1000.00 GB (Shared - 10.70 GB used - 940.08 GB free)


        Mount point: /

        Read-only: Yes

    disk1s4 - VM [APFS VM]

        1000.00 GB (Shared - 4.30 GB used - 940.08 GB free)


        Mount point: /private/var/vm

    disk1s5 - B*p [APFS Virtual drive]

        1000.00 GB (Shared - 44.11 GB used - 940.08 GB free)


        Mount point: /System/Volumes/Data

    disk3s1 - B*p

        1.00 TB (62.22 GB used - 937.99 GB free)

        Journaled HFS+

        Mount point: /Volumes/B****p



    Interface en0: Ethernet

    Interface en1: Wi-Fi

        802.11 a/b/g/n/ac

    Interface en4: Bluetooth PAN

    Interface bridge0: Thunderbolt Bridge


System Software:

    macOS Catalina 10.15.1 (19B88)

    Time since boot: About 2 days



    Notifications not available without Full Drive Access.



    Gatekeeper: Enabled

    System Integrity Protection: Enabled

    Antivirus software: Apple and Kaspersky


32-bit Applications:



Kernel Extensions:


        klif.kext (Kaspersky Lab UK Limited, 3.6.15a14)

        klsat.kext (Kaspersky Lab UK Limited, 1.0.1a5)

        klnke.kext (Kaspersky Lab UK Limited, 2.1.0)


System Launch Agents:

    [Not Loaded] 16 Apple tasks

    [Loaded] 152 Apple tasks

    [Running] 142 Apple tasks


System Launch Daemons:

    [Not Loaded] 36 Apple tasks

    [Loaded] 172 Apple tasks

    [Running] 126 Apple tasks

    [Other] 2 Apple tasks


Launch Agents:

    [Running] (Seiko Epson Corporation - installed 2018-08-02)

    [Loaded] (Seiko Epson Corporation - installed 2019-07-24)

    [Running] (Seiko Epson Corporation - installed 2019-10-03)

    [Running] (Seiko Epson Corporation - installed 2019-08-18)

    [Running] com.kaspersky.kav.gui.plist (Kaspersky Lab UK Limited - installed 2019-09-04)

    [Loaded] (Microsoft Corporation - installed 2019-11-03)

    [Loaded] (Microsoft Corporation - installed 2019-11-03)


Launch Daemons:

    [Running] com.kaspersky.kav.plist (Kaspersky Lab UK Limited - installed 2019-09-04)

    [Loaded] (Microsoft Corporation - installed 2019-11-03)

    [Loaded] (Microsoft Corporation - installed 2019-11-03)

    [Loaded] (Microsoft Corporation - installed 2019-11-03)

    [Loaded] (Microsoft Corporation - installed 2019-10-14)


User Launch Agents:

    [Other] com.kaspersky.kav.delayed_start.plist (? 0 - installed 2019-10-31)


User Login Items:

    Kaspersky Password Manager Login Item (App Store - installed 2019-10-31)

        (Modern Login Item - /Applications/Kaspersky Password Manager For Password Manager Login


Safari Extensions:

    Kaspersky Password Manager - App Store (installed 2019-10-31)

    Kaspersky Security - Kaspersky Lab UK Limited (installed 2019-10-31)


Time Machine:

    Time Machine information not available without Full Drive Access.

    22 local snapshots

    Oldest local snapshot: 2019-11-05 2013

    Last local snapshot: 2019-11-06 1905



    System Load: 2.40 (1 min ago) 2.20 (5 min ago) 1.91 (15 min ago)

    Nominal I/O speed: 0.78 MB/s

    File system: 54.18 seconds

    Write speed:  31 MB/s

    Read speed:  81 MB/s


CPU Usage Snapshot:

    Type Overall

    System 3 %

    User 6 %

    Idle 91 %


Top Processes Snapshot by CPU:

    Process (count) CPU (Source - Location)

    Other processes 23.32 % (?)

    Mail 3.92 % (Apple)

    Podcasts 3.87 % (Apple)

    EtreCheck 3.24 % (App Store)

    kav_agent 0.18 % (Kaspersky Lab UK Limited)


Top Processes Snapshot by Memory:

    Process (count) RAM usage (Source - Location)

    EtreCheck 520 MB (App Store)

    Podcasts 205 MB (Apple)

    Mail 142 MB (Apple) (2) 139 MB (Apple)

    suggestd 104 MB (Apple)


Top Processes Snapshot by Network Use:

    Process Input / Output (Source - Location)

    Mail 48 MB / 767 KB (Apple)

    Other processes 16 MB / 6 MB (?)

    SystemUIServer 0 B / 64 B (Apple)

    routined 0 B / 0 B (Apple)

    homed 0 B / 0 B (Apple)


Virtual Memory Information:

    Physical RAM: 8 GB


    Free RAM: 704 MB

    Used RAM: 4.51 GB

    Cached files: 2.80 GB


    Available RAM: 3.49 GB

    Swap Used: 0 B


Software Installs (past 30 days):

    Install Date Name (Version)

    2019-10-31 Gatekeeper Configuration Data (181)

    2019-10-31 XProtectPlistConfigData (2107)

    2019-10-31 Kaspersky Security Cloud

    2019-10-31 Kaspersky Password Manager (9.3.1)

    2019-10-31 Kaspersky Secure Connection (2.2.1)

    2019-10-31 Epson Scan 2 OCR Component

    2019-10-31 EpsonNet Setup

    2019-10-31 EPSON Software Updater

    2019-10-31 Epson Customer Research Participation

    2019-10-31 ET-3760

    2019-10-31 Epson Connect Printer Setup

    2019-11-01 EPSON Printer Driver

    2019-11-01 EpsonScan2_PDF_Extensions

    2019-11-01 Epson Event Manager

    2019-11-01 Epson Scanner Monitor

    2019-11-01 Epson ScanSmart

    2019-11-01 Epson Scan 2

    2019-11-03 Microsoft Office

    2019-11-05 EtreCheck (5.4.4)


Clean up:


        ~/Library/Application Support/Kaspersky Lab/

        Executable not found


Diagnostics Information (past 7 days):

    Directory /Library/Logs/DiagnosticReports is not accessible.

    Enable Full Drive Access to see more information.


End of report


Antivirus software problems - Antivirus software is causing performance problems.

Suggest uninstalling Kaspersky.


Does that have known issues with Macs?

On principle alone “All” anti-virus software is a waste of time. And in some cases they cause more trouble than they are worth.


macOS has its own protections (Xprotect), SIP, signed apps, and Apple has stayed on top of security issues.


There are no self propagating Mac viruses.


Trojan based malware (very few) and especially adware are the biggest issue an you have to be involved in the install. And nothing from the App Store.


The free MalwareBytes has proven the most effective, and along with EtreCheck for detecting these things, and EtreCheck has found your system to be free of them (except of course the problematic A/V).


And since you have to be involved in the install, you only need to run the free MalwareBytes or EtreCheck after you install non-Apple Store apps. So there is no need to give up CPU and I/O resources 24/7 to an A/V program.

Topic starter

I have removed Kaspersky and restarted my Mac I will turn sleep back on and see if the crashing still occurs if it does any suggestions?