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Question: YouTube will not play

I believe this coincided with my upgrade to HS. YouTube videos will not play. They just give me the old Ouroboros in the middle of the screen, but won't play.

Also, sluggish system in general.

I talked to Support. They think it's a YouTube issue. But I don't think YouTube would make my whole system slower.

IMAC (RETINA 5K, 27-INCH, MID 2015), OS X Yosemite (10.10.5)

Posted on


Dec 10, 2017 7:34 AM in response to dialabrain In response to dialabrain

EtreCheck version: 3.4.6 (460)

Report generated 2017-12-10 10:32:36

Download EtreCheck from

Runtime: 4:09

Performance: Good

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

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

Click the [Remove/Report] links to remove adware or update the whitelist of legitimate software.

Click the [Clean up] link to delete unused files.

Problem: Other problem


YouTube videos will not play, and my whole system is sluggish.

Hardware Information:

iMac (Retina 5K, 27-inch, Mid 2015)

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

iMac - model: iMac15,1

1 3.3 GHz Intel Core i5 (i5-4590) CPU: 4-core

8 GB RAM Upgradeable - [Instructions]


4 GB DDR3 1600 MHz ok


4 GB DDR3 1600 MHz ok





Handoff/Airdrop2: supported

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

Proxy: HTTP

Proxy: HTTPS

iCloud Quota: 4.07 GB available

Video Information:

AMD Radeon R9 M290 - VRAM: 2 GB

iMac 6400 x 3600

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:


Apple Inc. BRCM20702 Hub

Apple Inc. Bluetooth USB Host Controller

Apple Inc. FaceTime HD Camera (Built-in)

M-Audio Keystation 88

Focusrite Scarlett 2i4 USB

Thunderbolt Information:

Apple Inc. thunderbolt_bus

Virtual disks:

Macintosh HD (disk1 - Journaled HFS+) / [Startup]: 999.01 GB (691.67 GB free)

Physical disk: disk0s2 999.35 GB Online

QuickTime Player 7.6.6 Update (disk2s3 - HFS+) /Volumes/QuickTime Player 7.6.6 Update : 145 MB (118 MB free)

Physical disk: Disk Image 145 MB (118 MB free)

System Software:

macOS High Sierra 10.13.2 (17C88) - Time since boot: about 13 hours


Mac App Store and identified developers

Possible adware:

Unknown file: /Library/LaunchDaemons/local.srcsrv.job.plist


One possible adware file found. [Remove/Report]

Clean up:


/Applications/ ent.bundle/Contents/MacOS/

Executable not found!

One orphan file found. [Clean up]

Kernel Extensions:

/Library/Application Support/Avast/components/fileshield/signed

[loaded] com.avast.FileShield (4.0.0 - SDK 10.12) [Lookup]

/Library/Application Support/Avast/components/proxy/signed

[loaded] com.avast.PacketForwarder (2.1 - SDK 10.12) [Lookup]


[not loaded] com.bitdefender.FileProtect (1.1 - SDK 10.11) [Lookup]

[loaded] com.bitdefender.SelfProtect (1.2.8 - SDK 10.8) [Lookup]

[not loaded] com.bitdefender.TMProtection (5.0.0 - SDK 10.11) [Lookup]

[loaded] com.malwarebytes.mbam.rtprotection (3.0 - SDK 10.12) [Lookup]

[not loaded] (1.0.1 - SDK 10.9) [Lookup]


[not loaded] com.IKMultimedia.driver.StompIO1 (1.0.0) [Lookup]

[not loaded] com.ikmultimedia.driver.StealthPedal (1.0.0) [Lookup]

[not loaded] (6.4 - SDK 10.8) [Lookup]

[not loaded] (6.4 - SDK 10.8) [Lookup]

[not loaded] (6.4 - SDK 10.8) [Lookup]

[not loaded] com.tascam.usb2audio.driver (2.00) [Lookup]


[not loaded] com.tascam.usb2audio.driver_TIGER (2.00) [Lookup]

System Launch Agents:

[not loaded] 8 Apple tasks

[loaded] 170 Apple tasks

[running] 112 Apple tasks

System Launch Daemons:

[not loaded] 37 Apple tasks

[loaded] 182 Apple tasks

[running] 112 Apple tasks

Launch Agents:

[running] com.avast.osx.secureline.update-agent.plist (AVAST Software a.s. - installed 2017-12-09) [Lookup]

[loaded] com.avast.osx.secureline.userinit.plist (Shell Script 2fc1004f - installed 2017-12-09) [Lookup]

[running] com.avast.update-agent.plist (AVAST Software a.s. - installed 2017-12-09) [Lookup]

[loaded] com.avast.userinit.plist (Shell Script bb25154c - installed 2017-12-09) [Lookup]

[running] com.bitdefender.antivirusformac.plist (Bitdefender SRL - installed 2017-08-07) [Lookup]

[loaded] (Google, Inc. - installed 2017-12-05) [Lookup]

[running] com.malwarebytes.mbam.frontend.agent.plist (? 631295be 680057a5 - installed 2017-08-08) [Lookup]

Launch Daemons:

[loaded] com.adobe.fpsaud.plist (? 2afb3af7 defea098 - installed 2017-10-25) [Lookup]

[loaded] com.avast.init.plist (Shell Script fc55b6fa - installed 2017-12-09) [Lookup]

[loaded] com.avast.osx.secureline.init.plist (Shell Script 1bda83b1 - installed 2017-12-09) [Lookup]

[loaded] com.avast.osx.secureline.uninstall.plist (Shell Script ba7a0061 - installed 2017-12-09) [Lookup]

[loaded] com.avast.osx.secureline.update.plist (Shell Script f50a649c - installed 2017-12-09) [Lookup]

[loaded] com.avast.uninstall.plist (Shell Script 22f94791 - installed 2017-12-09) [Lookup]

[loaded] com.avast.update.plist (Shell Script 5c6ac355 - installed 2017-12-09) [Lookup]

[running] com.bitdefender.agent.plist (Bitdefender SRL - installed 2017-09-20) [Lookup]

[loaded] (Google, Inc. - installed 2017-12-05) [Lookup]

[running] com.malwarebytes.mbam.rtprotection.daemon.plist (? 31419c10 e3f423ee - installed 2017-08-08) [Lookup]

[running] com.malwarebytes.mbam.settings.daemon.plist (? a40d558f d0b9e521 - installed 2017-08-08) [Lookup]

[loaded] com.native-instruments.NativeAccess.Helper.plist (Native Instruments GmbH - installed 2017-04-12) [Lookup]

[running] (Roland Corporation - installed 2016-08-22) [Lookup]

[running] local.srcsrv.job.plist (? 7bd1a6a6 5659d8f6 - installed 2017-07-15) [Lookup]

User Launch Agents:

[not loaded] com.avast.home.userinit.plist (Shell Script 71395f80 - installed 2017-12-10) [Lookup]

[not loaded] com.avast.osx.secureline.home.userinit.plist (Shell Script 4c934f35 - installed 2017-12-10) [Lookup]

[loaded] com.dropbox.DropboxMacUpdate.agent.plist (Dropbox, Inc. - installed 2017-08-10) [Lookup]

[failed] com.enhance.update.Agent.plist (Liubov Onyshchenko - installed 2017-12-01) [Lookup]

[loaded] (? 9e64636f 0 - installed 2017-11-15) [Lookup] - /Applications/ ent.bundle/Contents/MacOS/ Executable not found!

[loaded] com.spelling.checker.Agent.plist (Liubov Onyshchenko - installed 2017-11-28) [Lookup]

[running] com.spotify.webhelper.plist (Spotify - installed 2017-11-08) [Lookup]

User Login Items:

TenorshareService Application

(~/Library/Application Support/TenorshareService/ SMLoginItem - Hidden (AVAST Software a.s. - installed 2017-10-20)


Internet Plug-ins:

FlashPlayer-10.6: (installed 2017-12-06) [Lookup]

QuickTime Plugin: 7.7.3 (installed 2017-12-07)

Flash Player: (installed 2017-12-06) [Lookup]

o1dbrowserplugin: (installed 2017-12-05) [Lookup]

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

NortonInternetSecurityBF: 6.4 (installed 2015-09-27) [Lookup]

Silverlight: 5.1.40416.0 (installed 2015-08-10) [Lookup]

Safari Extensions:

[enabled] AdBlock Ultimate - Secure Download - (installed 2017-12-05)

[disabled] Ka-Block! - David Graham & Josh Peek - (installed 2017-12-05)

[disabled] Wipr - Giorgio Calderolla - (installed 2017-12-05)

[disabled] Adamant - Cocoa App - (installed 2017-12-05)

Audio Plug-ins:

TASCAM_US1xx: Unknown (installed 2015-10-10) [Lookup]

3rd Party Preference Panes:

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

Time Machine:

Time Machine not configured!

Top Processes by CPU:

5% WindowServer

3% RTProtectionDaemon

2% kernel_task

2% mdworker

2% mdworker

Top Processes by Memory:

910 MB kernel_task

335 MB

244 MB Safari

216 MB com.avast.daemon

201 MB RTProtectionDaemon

Top Processes by Network Use:

Input Output Process name

233 KB 64 KB mDNSResponder

49 KB 19 KB Titanium.Web.Proxy.Examples.Basic.Standard

18 KB 1 KB com.avast.proxy

7 KB 5 KB apsd

5 KB 4 KB netbiosd

Top Processes by Energy Use:

6.24 WindowServer

1.16 RDUSB015BSetupd

0.14 AntivirusforMac

0.06 CalendarAgent

Virtual Memory Information:

2.60 GB Available RAM

23 MB Free RAM

5.40 GB Used RAM

2.58 GB Cached files

3 MB Swap Used

Software installs (last 30 days):

Google Voice and Video: (installed 2017-12-01)

Google Voice and Video: (installed 2017-12-05)

Adobe Flash Player: (installed 2017-12-06)

Avast Security: 13.2 (installed 2017-12-09)

Install information may not be complete.

Diagnostics Events (last 3 days for minor events):

2017-12-10 08:48:38 Titanium.Web.Proxy.Examples.Basic.Standard Crash [Open]

Cause: abort() called

2017-12-10 08:20:51 High CPU use [Open] [Details]

2017-12-10 08:13:42 Crash [Open]

Cause: objc_msgSend() selector name: respondsToSelector:

2017-12-09 20:52:17 Last shutdown cause: 3 - Hard shutdown

2017-12-09 17:17:46 com.avast.daemon High CPU use [Open] [Details]

2017-12-09 13:43:21 CalendarAgent Crash [Open]

2017-12-09 11:07:00 High CPU use [Open] [Details]

2017-12-08 15:12:27 Crash [Open]

2017-12-07 14:48:04 High CPU use [Open] [Details]

Dec 10, 2017 7:34 AM

Reply Helpful

Dec 10, 2017 7:42 AM in response to PorcineDrone In response to PorcineDrone

Having one anti-virus program installed is bad enough. Having three installed is horrendous. You should uninstall all of them. Macs don't need anti-virus programs and they cause more harm than good.

Try booting into Safe Mode and see if the videos play.

Use safe mode to isolate issues with your Mac - Apple Support

Dec 10, 2017 7:42 AM

Reply Helpful
User profile for user: PorcineDrone

Question: YouTube will not play