5K iMac problems since macOS Sierra

[jonahke]

Since the day I installed macOS Sierra on my 5K iMac I got several problems
-When I want to shut down my iMac it get stuck on a black screen with the spinning beach ball.
-When an app freezes and I force quit it, it won't restart (same with my Finder)
-The beach ball appears with the easiest tasks (f.e. uploaden an image from my finder to Facebook)

The only thing to 'solve' those problems is to restart my Mac with the power button.

With Mac OS X El Capitan I never had any problems, so what can I do?
I tried starting my Mac in safe mode, I did an hardware test (nothing wrong), reset NVRAM,...


This are the results of the EtreCheck:

EtreCheck version: 3.1.3 (337)
Report generated 2016-11-30 14:34:26
Download EtreCheck from https://etrecheck.com
Runtime 1:45
Performance: Excellent

Click the [Support] links for help with non-Apple products.
Click the [Details] links for more information about that line.
Click the [Remove] links to remove adware.

Problem: Other problem

Hardware Information: ⓘ
   iMac (Retina 5K, 27-inch, Late 2015)
   [Technical Specifications] – [User Guide] – [Warranty & Service]
   iMac – model: iMac17,1
   1 3,2 GHz Intel Core i5 (i5-6500) CPU: 4-core
   8 GB RAM Upgradeable – [Instructions]
       BANK 0/DIMM0
           4 GB DDR3 1867 MHz ok
       BANK 0/DIMM1
           Empty
       BANK 1/DIMM0
           4 GB DDR3 1867 MHz ok
       BANK 1/DIMM1
           Empty
   Bluetooth: Good – Handoff/Airdrop2 supported
   Wireless:  en1: 802.11 a/b/g/n/ac

Video Information: ⓘ
   AMD Radeon R9 M390 – VRAM: 2048 MB
       iMac 5120 x 2880

System Software: ⓘ
   macOS Sierra  10.12.2 (16C48b) – Time since boot: less than an hour

Disk Information: ⓘ
   APPLE SSD SM0256G disk0 : (251 GB) (Solid State – TRIM: Yes)
   [Show SMART report]
       EFI (disk0s1) <not mounted> : 210 MB
       Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB
       Macintosh HD (disk1) /  [Startup]: 249.79 GB (73.59 GB free)
           Core Storage: disk0s2 250.14 GB Online

USB Information: ⓘ
   Broadcom Corp. Bluetooth USB Host Controller
   Apple Inc. FaceTime HD Camera (Built-in)
   Seagate  Desktop         

Thunderbolt Information: ⓘ
   Apple Inc. thunderbolt_bus

Gatekeeper: ⓘ
   Mac App Store and identified developers

Adware: ⓘ
   ~/Library/LaunchAgents/com.bittorrent.uTorrent.plist
   One adware file found. [Remove]

System Launch Agents: ⓘ
   [not loaded]    7 Apple tasks
   [loaded]    176 Apple tasks
   [running]    97 Apple tasks

System Launch Daemons: ⓘ
   [not loaded]    41 Apple tasks
   [loaded]    172 Apple tasks
   [running]    101 Apple tasks

Launch Agents: ⓘ
   [running]    com.adobe.AdobeCreativeCloud.plist (2016-10-28) [Support]
   [running]    com.brother.LOGINserver.plist (2016-05-29) [Support]
   [loaded]    com.oracle.java.Java-Updater.plist (2016-05-20) [Support]

Launch Daemons: ⓘ
   [running]    com.adobe.adobeupdatedaemon.plist (2016-10-28) [Support]
   [running]    com.adobe.agsservice.plist (2016-10-23) [Support]
   [loaded]    com.adobe.fpsaud.plist (2016-10-26) [Support]
   [loaded]    com.malwarebytes.HelperTool.plist (2016-11-28) [Support]
   [loaded]    com.microsoft.autoupdate.helpertool.plist (2016-08-03) [Support]
   [loaded]    com.microsoft.office.licensingV2.helper.plist (2015-10-08) [Support]
   [loaded]    com.oracle.java.Helper-Tool.plist (2016-04-01) [Support]

User Launch Agents: ⓘ
   [not loaded]    com.adobe.AAM.Updater-1.0.plist (2016-11-03) [Support]
   [loaded]    com.bittorrent.uTorrent.plist (2016-11-11) Adware!  [Remove]
       /usr/bin/open
   [loaded]    com.google.keystone.agent.plist (2016-08-24) [Support]
   [running]    com.spotify.webhelper.plist (2016-11-29) [Support]

User Login Items: ⓘ
   iTunesHelper    Programma   (2016-11-03)
       (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
   Safari    Programma   (2016-11-25)
       (/Applications/Safari.app)
   iTunes    Programma   (2016-11-03)
       (/Applications/iTunes.app)
   Mail    Programma   (2016-11-25)
       (/Applications/Mail.app)

Internet Plug-ins: ⓘ
   Silverlight: 5.1.50428.0 – SDK 10.6 (2016-09-10) [Support]
   FlashPlayer-10.6: 23.0.0.207 – SDK 10.9 (2016-11-08) [Support]
   Flash Player: 23.0.0.207 – SDK 10.9 (2016-11-08) [Support]
   QuickTime Plugin: 7.7.3 (2016-11-25)
   JavaAppletPlugin: Java 8 Update 91 build 14 (2016-05-20) Check version
   AdobeAAMDetect: 3.0.0.0 – SDK 10.9 (2016-10-28) [Support]

Safari Extensions: ⓘ
   Open in Internet Explorer – Parallels – http://www.parallels.com (2016-05-29)

3rd Party Preference Panes: ⓘ
   Flash Player (2016-10-26) [Support]
   Java (2016-05-20) [Support]

Time Machine: ⓘ
   Time Machine not configured!

Top Processes by CPU: ⓘ
       22%       com.apple.WebKit.WebContent(5)
       21%       kernel_task
       20%       com.apple.WebKit.Networking(2)
        7%       WindowServer
        6%       Safari

Top Processes by Memory: ⓘ
   1.07 GB       kernel_task
   1.02 GB       com.apple.WebKit.WebContent(5)
   795 MB        iTunes
   360 MB        mdworker(24)
   188 MB        mds_stores

Virtual Memory Information: ⓘ
   2.30 GB       Available RAM
   731 MB        Free RAM
   5.70 GB       Used RAM
   1.59 GB       Cached files
   82 MB         Swap Used

Diagnostics Information: ⓘ
   Nov 30, 2016, 02:21:29 PM    Self test – passed
   Nov 29, 2016, 10:12:57 PM    /Library/Logs/DiagnosticReports/Finder_2016-11-29-221257_[redacted].hang
       /System/Library/CoreServices/Finder.app/Contents/MacOS/Finder
   Nov 28, 2016, 03:39:47 PM    ~/Library/Logs/DiagnosticReports/CEPHtmlEngine_2016-11-28-153947_[redacted].crash
       com.adobe.cep.CEPHtmlEngine – /Applications/Adobe Illustrator CC 2017/Adobe Illustrator.app/Contents/MacOS/CEPHtmlEngine/CEPHtmlEngine.app/Contents/MacOS/CEPHtmlEngine
   Nov 28, 2016, 02:37:20 PM    /Library/Logs/DiagnosticReports/Finder_2016-11-28-143720_[redacted].hang

 

[Weaselboy]

Looks like you have some adware running there. Go to the folder ~/Library/LaunchAgents/ and dlete that uTorrent launch item. Note this is the Library folder in your personal users folder and not the System Library folder.

Adware: ⓘ
~/Library/LaunchAgents/com.bittorrent.uTorrent.plist
One adware file found. [Remove]

Otherwise, I'm not seeing anything that would make Finder crash like this. Can you clarify, does the problem still occur when you boot to safe mode?

 

[jonahke]

Looks like you have some adware running there. Go to the folder ~/Library/LaunchAgents/ and dlete that uTorrent launch item. Note this is the Library folder in your personal users folder and not the System Library folder.

Adware: ⓘ
~/Library/LaunchAgents/com.bittorrent.uTorrent.plist
One adware file found. [Remove]

Otherwise, I'm not seeing anything that would make Finder crash like this. Can you clarify, does the problem still occur when you boot to safe mode?

Yes even when I boot in safe mode it happens. I also tried to make a new user account, but even then my Finder and other apps freeze.

And it all started when I updated my iMac to macOS Sierra. (It is already a lot better than in the beginning, but still..)

 

[Weaselboy]

Yes even when I boot in safe mode it happens. I also tried to make a new user account, but even then my Finder and other apps freeze.

I think you may have some underlying hardware issue here that just coincidentally manifested with the Sierra install. A safe mode boot runs a completely stripped down system and stops all launch items and startup items, so that cannot be the cause.

I'd take it in under warranty.

 

[stooovie]

I had the same problems even with ElCap. Same 5k iMac. Freezing, hanging like 2-5 times a day. Believe it or not, third beta of 10.12.2 solved all of that. Zero problems in 12 days uptime and HEAVY usage (concurrent Adobe suite and VM with Windows 10). I kind of want to stay on the beta this iMac has NEVER been this stable

So no, it doesn't have to be a hardware issue.

 

[jonahke]

I think you may have some underlying hardware issue here that just coincidentally manifested with the Sierra install. A safe mode boot runs a completely stripped down system and stops all launch items and startup items, so that cannot be the cause.

I'd take it in under warranty.

Sorry apparently I always did the 'safe mode' wrong (stopped holding shift after the Apple-logo appeared) so I did it again, but it is actually hard to tell if the problem appears in safe mode because my Mac is almost unusably slow in this mode. (but this is normal, right?) So I can't do the normal work I do to compare.

 

[Weaselboy]

Sorry apparently I always did the 'safe mode' wrong (stopped holding shift after the Apple-logo appeared) so I did it again, but it is actually hard to tell if the problem appears in safe mode because my Mac is almost unusably slow in this mode. (but this is normal, right?) So I can't do the normal work I do to compare.

Ah... okay. That's better. Yes, it is normal to be slower in safe mode because that shuts off graphics acceleration. So if safe mode fixes the Finder crashes, then it means either a launch or startup item of some kind is causing this. There is no magic way to figure out which one it is. You just have to go through all the items in either System Preferences > Users & Groups > Login items... or any of the following folders and start removing and testing.

~/Library/LaunchAgents (~ is your users folder)
/Library/LaunchAgents
/Library/LaunchDaemons
/Library/StartupItems
/System/Library/Extensions/

What I do is print out the Etrecheck report and use that as a worksheet. Then make a folder on the Desktop and start dragging those items out of the listed folders and into the Desktop folder then restart in regular mode and see if that worked. I usually remove half at a time until I find the offender. Then once you find the culprit you can start adding things back and testing.

 

[allan.nyholm]

Perhaps create a new user - and play around with that. See if apps behave over time.

Also, as mentioned above - you should look through your software - Java etc.

How often is the Parallels extension in use in Safari? Disable for a moment.