Computer Freezes While Watching Videos

[JamesTeters]

Hello i try watch wwe summerslam videos on youtube, dailymotion and watch wrestling site
This is what happened while I was watching a video on here

https://www.youtube.com/user/WWEFanNation
http://watchwrestling.co/watch-wwe-summerslam-2014-8172014/
on official youtube channel it not working

Computer service take Rs 1000 every time to fixed this problem They changed and window an d sell the antivirus

This problem happens every once in a while,and so far, it only happens while I'm watching a video on Youtube (full screen or not). My computer was built in Feb. 2012, with the following specs:

Intel Core i7 2600K CPU
ASUS P8Z68-V PRO/GEN3 Motherboard
2 x EVGA GeForce GTX 560 Ti Video Cards
Corsair Vengeance 16GB DDR3-1600 RAM
Corsair H100 CPU Cooler
Corsair Force Series GT 120GB SSD
Western Digital Caviar Black 2TB HDD
Coolermaster Haf X Case
Coolermaster Silent Pro 1000W Power Supply
Windows 7 64 bit

All drivers, and firmware are up to date.

Is this more likely to be a hardware issue or software issue?
If it's a hardware issue, is it more likely to be a defect in the graphic card(s) or the motherboard?

Thanks.

 

[mrtechguy]

What Freezes? The Flash/HTML5 Player It Self Or The PC Or The Browser

 

[JamesTeters]

Pop up screen up message came continue and Stop
Need Flash player

 

[Ketchup]

What level Flash do you have, and what browser are you using? For example, I am using Firefox and flash level 14.0.0.145 and haven't had flash crash issues since several versions back.
Have you tried a different browser?
Does it crash during normal playback or just when you stop and restart it a lot?