Windows 10: PC shuts off/restarts whenever I'm watching a YouTube video

Hi I've been having an issue where my pc is suddenly turning off when I'm watching a video. I know it's not caused by overheating since my pc is very well fan up. This also was occurring to me previously and then it stopped for about 2 months. Now it's back again, not entirely sure what to do. I did a reboot on the applications that start up when I turn on my pc, did change the driver to an older one too and it's still happening. I'm assuming there's something causing a crash/bluescreen and that's making my pc to restart whenever I watch a video.

:)

 

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I haven't gotteen to this suggestion yet - but, I've shut down half my Extensions and, now, I get the voice of the Youtube videos - but still not the video. Thought this clue might help.

 

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Load this checklist video in Edge: (I'm assuming you did at least a few of these steps, since you stated you tried other suggestions earlier) Go through the list of suggestions here to try to repair YouTube for Chrome...

 

Troubleshooting help: YouTube videos won't play on Windows 10 PC

I just got a new Windows 10 PC & I'm finding that it won't play YouTube videos. Specifically YouTube. In the video area the loading indicator circles indefinitely and I see this message...

Additional info & steps I've tried...

• Netflix plays flawlessly
  
• Other Macs, PCs, iOS & Android devices on the same network play YouTube videos no problem
  
• I restarted the machine
  
• Restarted the cable modem
  
• The machine can do other Internet stuff fine -- browse websites, email, etc.
  
• I cleared the browser cache & browsing data
  
• I tried a different browser (I tried Chrome & MS Edge)
  
• I looked under "Windows Defender Security Center > App & browser control" but I don't see anything there about blocking videos.
  
• Turned off ad blocker
  
• Tried connecting via Ethernet and wi-fi
  
• No peripherals connected to the machine
  

System info

Gigabyte Aero 15x
Windows 10 Pro

Version 1803

Installed on 8/14/2018

OS build 17134.228

Any help, advice, or further troubleshooting steps would be greatly appreciated. Thanks