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iMac Slow [Retina 5K, 27 in, Late 2015]

My iMac is suddenly very slow and when I try to restart it, it gets stuck on a black screen with just the cursor.

 

Pasted below are my EtreCheck results. Can anyone help me analyze them to figure out what's going on? Thanks so much.

 

EtreCheck version: 3.4.6 (460)

Report generated 2017-10-13 09:26:03

Download EtreCheck from https://etrecheck.com

Runtime: 5:14

Performance: Below Average

 

Click the [Lookup] links for more information from Apple Support Communities.

Click the [Details] links for more information about that line.

 

Problem: Computer is too slow

 

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  

    Handoff/Airdrop2: supported

    Wireless:  en1: 802.11 a/b/g/n/ac

    iCloud Quota: 1.68 TB available

 

Video Information: ⓘ

    AMD Radeon R9 M380 - VRAM: 2 GB

        iMac 5120 x 2880

 

Disk Information: ⓘ

    APPLE HDD ST1000DM003 disk0: (1 TB) (Rotational)

    [Show SMART report]

        EFI (disk0s1 - MS-DOS FAT32) <not mounted>  [EFI]: 210 MB

        (disk0s2) <not mounted>  [CoreStorage Container]: 999.35 GB

        (disk0s3) <not mounted>  [Recovery]: 650 MB

 

USB Information: ⓘ

     USB30Bus

        Broadcom Corp. Bluetooth USB Host Controller

        Apple Inc. FaceTime HD Camera (Built-in)

        Apple Inc. iPhone

 

Thunderbolt Information: ⓘ

    Apple Inc. thunderbolt_bus

 

Virtual disks: ⓘ

    Macintosh HD (disk1 - Journaled HFS+) /  [Startup]: 998.99 GB (522.08 GB free)

        Physical disk: disk0s2 999.35 GB Online

 

System Software: ⓘ

    macOS High Sierra  10.13.1 (17B35a) - Time since boot: about one day

 

Gatekeeper: ⓘ

    Mac App Store and identified developers

 

Kernel Extensions: ⓘ

        /Applications/iSkysoft iTube Studio.app

    [not loaded]    com.Perfect.Driver.SystemAudioRecorder (1.1.0 - SDK 10.6) [Lookup]

 

System Launch Agents: ⓘ

    [not loaded]    8 Apple tasks

    [loaded]    160 Apple tasks

    [running]    120 Apple tasks

 

System Launch Daemons: ⓘ

    [not loaded]    38 Apple tasks

    [loaded]    175 Apple tasks

    [running]    117 Apple tasks

 

Launch Agents: ⓘ

    [not loaded]    com.adobe.AAM.Updater-1.0.plist (Adobe Systems, Inc. - installed 2017-10-11) [Lookup]

    [running]    com.adobe.AdobeCreativeCloud.plist (Adobe Systems, Inc. - installed 2017-10-11) [Lookup]

    [loaded]    com.google.keystone.agent.plist (Google, Inc. - installed 2017-09-27) [Lookup]

 

Launch Daemons: ⓘ

    [not loaded]    PT.updd.plist (? 0 ? - installed 2017-04-05) [Lookup]

    [loaded]    com.adobe.acc.installer.plist (Adobe Systems, Inc. - installed 2017-10-11) [Lookup]

    [running]    com.adobe.agsservice.plist (Adobe Systems, Inc. - installed 2017-09-26) [Lookup]

    [loaded]    com.adobe.fpsaud.plist (? 2afb3af7 ebe01993 - installed 2017-09-25) [Lookup]

    [loaded]    com.apple.aelwriter.plist (Apple, Inc. - installed 2016-07-18)

    [not loaded]    com.apple.installer.cleanupinstaller.plist (? 1963bf56 0 - installed 2017-10-10)

    [loaded]    com.apple.installer.osmessagetracing.plist (Apple, Inc. - installed 2017-10-04)

    [failed]    com.apple.qmaster.qmasterd.plist (Apple, Inc. - installed 2009-06-19)

    [loaded]    com.google.keystone.daemon.plist (Google, Inc. - installed 2017-10-12) [Lookup]

 

User Launch Agents: ⓘ

    [loaded]    com.adobe.AAM.Updater-1.0.plist (Adobe Systems, Inc. - installed 2017-10-11) [Lookup]

    [running]    com.spotify.webhelper.plist (Spotify - installed 2017-10-13) [Lookup]

 

User Login Items: ⓘ

    1Password Helper URL    SMLoginItem - Hidden (Apple, Inc. - installed 2017-09-20)

        (/Applications/1Password.app/Contents/Library/LoginItems/2BUA8C4S2C.com.agilebi ts.onepassword-osx-helper.app)

 

Internet Plug-ins: ⓘ

    googletalkbrowserplugin: 5.41.3.0 (installed 2015-12-11) [Lookup]

    FlashPlayer-10.6: 27.0.0.159 (installed 2017-10-11) [Lookup]

    Flash Player: 27.0.0.159 (installed 2017-10-11) [Lookup]

    QuickTime Plugin: 7.7.3 (installed 2017-10-11)

    o1dbrowserplugin: 5.41.3.0 (installed 2016-09-08) [Lookup]

    AdobeAAMDetect: 3.0.0.0 (installed 2017-10-11) [Lookup]

 

User internet Plug-ins: ⓘ

    Aspera Web 3.6.6.119698: Unknown (installed 2016-02-12) [Lookup]

 

Safari Extensions: ⓘ

    [enabled]    1Password - AgileBits - https://agilebits.com/onepassword (installed 2017-09-19)

 

Audio Plug-ins: ⓘ

    DVCPROHDAudio: 1.3.2 (installed 2016-07-18)

 

3rd Party Preference Panes: ⓘ

    None

 

Time Machine: ⓘ

    Time Machine not configured!

 

Top Processes by CPU: ⓘ

        25%   kernel_task

        23%   HP Easy Start

         8%   com.apple.WebKit.WebContent

         6%   WindowServer

         4%   Safari

 

Top Processes by Memory: ⓘ

    1.02 GB   kernel_task

    361 MB    com.apple.WebKit.WebContent

    288 MB    com.apple.WebKit.WebContent

    253 MB    HP Easy Start

    229 MB    Messages

 

Top Processes by Network Use: ⓘ

    Input     Output    Process name

    16 MB     2 MB      Spotify

    12 MB     120 KB    com.apple.WebKit.Networking

    4 MB      84 KB     mDNSResponder

    15 KB     16 KB     apsd

    9 KB      1 KB      netbiosd

 

Top Processes by Energy Use: ⓘ

     14.36 kextd

     12.68 Safari

     12.04 com.apple.WebKit.WebContent

     10.46 WindowServer

     10.24 com.apple.Safari.History

 

Virtual Memory Information: ⓘ

    2.04 GB   Available RAM

    267 MB    Free RAM

    5.96 GB   Used RAM

    1.78 GB   Cached files

    63 MB     Swap Used

 

Software installs (last 30 days): ⓘ

    Power Prompter: 1.5.4 (installed 2017-09-19)

    1Password: 6.8.2 (installed 2017-09-20)

    Power Prompter: 2.0 (installed 2017-09-25)

    Adobe Flash Player:  (installed 2017-10-11)

 

    Install information may not be complete.

 

Diagnostics Events (last 3 days for minor events): ⓘ

    2017-10-13 09:23:45    qmasterd Crash [Open]

        Cause:        dyld: launch, loading dependent libraries

    2017-10-13 09:20:49    /Library/Logs/DiagnosticReports/qmasterd_2017-10-13-092049_[redacted].crash Crash Missing!

    2017-10-13 09:20:39    /Library/Logs/DiagnosticReports/qmasterd_2017-10-13-092039_[redacted].crash Crash Missing!

    2017-10-13 09:20:29    /Library/Logs/DiagnosticReports/qmasterd_2017-10-13-092029_[redacted].crash Crash Missing!

    2017-10-13 09:06:04    quicklookd.app Crash [Open]

        Cause:        objc_msgSend() selector name: _cfTypeID

        qlmanage --diag 6571367.27535918 6571367.25716939

        last generator in main thread: com.apple.qlgenerator.text

        last threaded generator: com.apple.qlgenerator.pdf

    2017-10-12 10:59:15    Last shutdown cause: 3 - Hard shutdown

    2017-10-10 10:42:01    Premiere Pro Installer.app Crash [Open]

 

Files deleted by EtreCheck: ⓘ

    2017-10-12 11:43:42 - ~/Library/LaunchAgents/com.appbox.AppBox.plist - Unknown

    2017-10-12 11:43:42 - ~/Library/LaunchAgents/com.unionsoftwareonline.AppMonitor.plist - Unknown

    2017-10-12 11:43:58 - ~/Library/LaunchAgents/com.vladalexa.MagicPrefs.plist - Unknown

 

 

 

Eddie O

The most obvious thing I see is the lack of RAM. This is critical as you use RAM intensive applications (Adobe Cloud) .  You also did not indicate how long this issue has been occurring. If it was present prior to having High Sierra (10.13) installed then you should NEVER have updated to 10.13 until your got the problem fixed. The reason being is  you have made the problem much more difficult to troubleshoot.

 

Next and while this isn't a solution to your problem,  you don't appear to be backing up your system. This is a critical error as you will eventually lose critical data. There is NO excuse to not backing up the system. Apple includes Time Machine with Mac OS and it only requires an external HD to backup. If you are not familiar with TM please review How to use Time Machine to back up or restore your Mac - Apple Support.

 

My recommendation would be to  upgrade to 12-16GB of RAM. When you do only purchase from either Crucial (buy it direct) or OWC (www.macsales.com) . The reason for recommending these two vendors is iMacs are sensitive to using quality RAM and both of these vendors provide VERY high quality products at reasonable prices and provide excellent service.

Thank you for the feedback! I will purchase 16GB of RAM now, from macsales.com.

最後更新：2017-10-14 02:01:06

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