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Question: iMac runs incredibly slow on startup and when first opening applications

I have a Late 2015 iMac running on Sierra that has been incredibly slow since the day I got it (May 2016). On original setup, I used time machine to transfer everything over from my work computer since this would be my work from home computer. When first logging in, it takes forever to load the desktop, files, open applications. Once I open an application once, it usually speeds up when opening a second time. I took it to the Apple store and they ran diagnostics and said everything was normal. I know that taking over a minute to open Firefox is not normal.


I was reading another closed thread New iMac 2016 so slow.. what is going on? that sounded very similar to mine so I ran the EtreCheck but I don't know how to analyze the results.


macOS Sierra

Version 10.12.6

iMac Retina 4k, 21.5 inch, late 2015

Processor 3.1GHz Intel Core i5

Memory 8 GB 1867 MHz DDR3

Startup Disk Macintoch HD

Graphics Intel Iris Pro Graphics 6200 1536 MB

Model Name: iMac

Model Identifier: iMac16,2

Processor Name: Intel Core i5

Processor Speed: 3.1 GHz

Number of Processors: 1

Total Number of Cores: 4

L2 Cache (per Core): 256 KB

L3 Cache: 4 MB

Memory: 8 GB

Boot ROM Version: IM162.0207.B20

SMC Version (system): 2.32f20

Serial Number (system): C*************8

Hardware UUID: 41864F5A-6517-552A-8860-00DB67EC4154

iMac (Retina 4K, 21.5-inch, Late 2015), macOS Sierra (10.12.6), null

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Nov 12, 2017 8:01 AM in response to laurenr22 In response to laurenr22

Here is my EtreCheck report:


EtreCheck version: 3.4.6 (460)

Report generated 2017-11-12 10:37:40

Download EtreCheck from https://etrecheck.com

Runtime: 6:08

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

Description:

The computer is incredibly slow to startup and load applications on the first start. Once it gets going, it seems to speed up, but then will occasionally freeze and beach ball.


Hardware Information: ⓘ

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

[Technical Specifications] - [User Guide] - [Warranty & Service]

iMac - model: iMac16,2

1 3.1 GHz Intel Core i5 (i5-5675R) CPU: 4-core

8 GB RAM Not upgradeable

BANK 0/DIMM0

4 GB DDR3 1867 MHz ok

BANK 1/DIMM0

4 GB DDR3 1867 MHz ok

Handoff/Airdrop2: supported

Wireless: en1: 802.11 a/b/g/n/ac


Video Information: ⓘ

Intel Iris Pro Graphics 6200 - VRAM: 1536 MB

iMac 4096 x 2304


Disk Information: ⓘ

APPLE HDD HTS541010A9E662 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

Recovery HD (disk0s3 - Journaled HFS+) <not mounted> [Recovery]: 650 MB


USB Information: ⓘ

USB30Bus

Broadcom Corp. Bluetooth USB Host Controller

Apple Inc. FaceTime HD Camera (Built-in)

SanDisk Cruzer Glide

Cruzer Glide disk3: (8 GB)

NO NAME (disk3s1 - MS-DOS FAT32) /Volumes/NO NAME : 8.00 GB (7.98 GB free)


Thunderbolt Information: ⓘ

Apple Inc. thunderbolt_bus


Virtual disks: ⓘ

Macintosh HD (disk1 - Journaled HFS+) / [Startup]: 998.99 GB (650.40 GB free)

Physical disk: disk0s2 999.35 GB Online


System Software: ⓘ

macOS Sierra 10.12.6 (16G29) - Time since boot: about 10 hours


Configuration files: ⓘ

/etc/hosts - Count: 4 - Corrupt!


Gatekeeper: ⓘ

Mac App Store and identified developers


Kernel Extensions: ⓘ

/System/Library/Extensions

[not loaded] com.Cycling74.driver.Soundflower (1.5.1) [Lookup]

[loaded] com.logmein.driver.LogMeInSoundDriver (4.1.6663) [Lookup]

[not loaded] com.wacom.kext.pentablet (Pen Tablet 5.3.5-4 - SDK 10.9) [Lookup]

[not loaded] zoom.us.ZoomAudioDevice (1.1 - SDK 10.8) [Lookup]


System Launch Agents: ⓘ

[not loaded] 7 Apple tasks

[loaded] 180 Apple tasks

[running] 95 Apple tasks


System Launch Daemons: ⓘ

[not loaded] 42 Apple tasks

[loaded] 175 Apple tasks

[running] 101 Apple tasks


Launch Agents: ⓘ

[not loaded] com.adobe.AAM.Updater-1.0.plist (Adobe Systems, Inc. - installed 2017-04-11) [Lookup]

[failed] com.adobe.ARMDCHelper.cc24aef4a1b90ed56a725c38014c95072f92651fb65e1bf9c8e43c37a 23d420d.plist (Adobe Systems, Inc. - installed 2017-06-08) [Lookup]

[running] com.adobe.AdobeCreativeCloud.plist (Adobe Systems, Inc. - installed 2017-10-04) [Lookup]


Launch Daemons: ⓘ

[loaded] com.adobe.ARMDC.Communicator.plist (Adobe Systems, Inc. - installed 2017-06-08) [Lookup]

[loaded] com.adobe.ARMDC.SMJobBlessHelper.plist (Adobe Systems, Inc. - installed 2017-06-08) [Lookup]

[loaded] com.adobe.SwitchBoard.plist (? 68cad67 0 - installed 2017-04-11) [Lookup]

[loaded] com.adobe.acc.installer.plist (Adobe Systems, Inc. - installed 2017-10-04) [Lookup]

[running] com.adobe.agsservice.plist (Adobe Systems, Inc. - installed 2017-10-04) [Lookup]

[loaded] com.adobe.fpsaud.plist (? 2afb3af7 564efddb - installed 2017-10-20) [Lookup]

[loaded] com.skype.skypeinstaller.plist (Skype - installed 2017-03-14) [Lookup]


User Login Items: ⓘ

com.adobe.SwitchBoard.monitor.plist MachInit - Hidden

(/etc/mach_init_per_user.d/com.adobe.SwitchBoard.monitor.plist)

Mach Init items are deprecated


Internet Plug-ins: ⓘ

OfficeLiveBrowserPlugin: 12.3.6 (installed 2013-03-18) [Lookup]

AdobePDFViewerNPAPI: 17.009.20044 (installed 2017-04-04) [Lookup]

Flash Player: 27.0.0.183 (installed 2017-10-25) [Lookup]

AdobePDFViewer: 17.009.20044 (installed 2017-04-04) [Lookup]

LogMeInSafari32: 1.0.935 (installed 2013-03-12) [Lookup]

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

iPhotoPhotocast: 7.0 (installed 2010-09-19)

QuickTime Plugin: 7.7.3 (installed 2017-08-27)

FlashPlayer-10.6: 27.0.0.183 (installed 2017-10-25) [Lookup]

AdobeAAMDetect: 3.0.0.0 (installed 2017-10-04) [Lookup]

Silverlight: 5.1.30514.0 (installed 2015-01-10) [Lookup]

CouponPrinter-FireFox_v2: Version 1.1.6 (installed 2011-09-20) [Lookup]

LogMeIn: 1.0.935 (installed 2013-03-12) [Lookup]

Flip4Mac WMV Plugin: 2.4.2.4 (installed 2012-05-15) [Lookup]

WacomTabletPlugin: WacomTabletPlugin 2.1.0.6 (installed 2014-08-20) [Lookup]

o1dbrowserplugin: 5.41.3.0 (installed 2015-12-16) [Lookup]

WacomSafari: 1.1.1-1 (installed 2016-02-08) [Lookup]

SharePointBrowserPlugin: 14.6.4 (installed 2016-05-11) [Lookup]

JavaAppletPlugin: 15.0.1 (installed 2016-02-08) Check version

WacomNetscape: 1.1.1-1 (installed 2016-02-08) [Lookup]


User internet Plug-ins: ⓘ

CitrixOnlineWebDeploymentPlugin: 1.0.105 (installed 2013-04-25) [Lookup]

ZoomUsPlugIn: 4.1.9338.0929 (installed 2017-10-14) [Lookup]


3rd Party Preference Panes: ⓘ

Adobe Version Cue CS4 (installed 2010-03-09) [Lookup]

Flash Player (installed 2017-10-20) [Lookup]

Flip4Mac WMV (installed 2012-03-20) [Lookup]


Time Machine: ⓘ

Mobile backups: OFF

Auto backup: NO - Auto backup turned off

Volumes being backed up:

Macintosh HD: Disk size: 998.99 GB Disk used: 348.59 GB

Destinations:

My Passport 2015 [Local]

Total size: 999.83 GB

Total number of backups: 5

Oldest backup: 3/16/16, 12:30 AM

Last backup: 3/12/17, 12:52 PM

Size of backup disk: Too small

Backup size 999.83 GB < (Disk used 348.59 GB X 3)


Top Processes by CPU: ⓘ

11% AdobeGCClient

4% kernel_task

4% xpcproxy

1% plugin-container

1% firefox


Top Processes by Memory: ⓘ

1.04 GB firefox

774 MB plugin-container

754 MB kernel_task

144 MB Dock

114 MB Adobe CEF Helper


Top Processes by Network Use: ⓘ

Input Output Process name

13 MB 782 KB firefox

65 KB 41 KB mDNSResponder

9 KB 7 KB apsd

9 KB 2 KB netbiosd

6 KB 2 KB com.apple.geod


Top Processes by Energy Use: ⓘ

17.38 firefox

15.34 plugin-container

9.02 WindowServer

3.76 AddressBookSourceSync


Virtual Memory Information: ⓘ

2.05 GB Available RAM

16 MB Free RAM

5.95 GB Used RAM

2.03 GB Cached files

4 MB Swap Used


Software installs (last 30 days): ⓘ

Adobe Flash Player: (installed 2017-10-16)

Adobe Flash Player: (installed 2017-10-25)


Install information may not be complete.


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

2017-11-11 23:38:14 Adobe Photoshop CS6.app Hang [Open]

2017-11-11 23:33:52 Last shutdown cause: 3 - Hard shutdown

Nov 12, 2017 8:01 AM

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User profile for user: laurenr22

Question: iMac runs incredibly slow on startup and when first opening applications