Why does watching videos online restart my PC?

First, I have an HP Pavillion dv6000



AMD Turion 64, dual core processor

3 GB DDR2 memory

15.4鈥?WXGA High-Definition HP BrightView Widescreen Display (1280 x 800)

256MB NVIDIA(R) GeForce(R) Go 7200

200GB 5400RPM SATA Hard Drive

LightScribe SuperMulti 8X DVD+/-RW with Double Layer Support

1.3 Megapixel Webcam with mic built into screen

Altec Lansing speakers built in

3 USB ports, ExpressCard/54 Slot, Video Out, Integrated Consumer IR, 1 RJ-11, 1 RJ-45

Windows Vista Home Premium





I have been researching this for a while. Started maybe 2 weeks ago. I don't know if there was an update or not. I would watch a video online in either a flash format or divx. Anywhere from about 5-15 minutes into it, the browser would not respond, I can't shut it down. Anything else that I try to do (open or close another window, open start menu, CTRL+SHIFT+ESC) would not respond in almost a domino effect. Shortly after if I wait, my machine will power off hard with no exit screen and start up again. This has happend multiple times while I was on youtube.com, ninjavideo.net (divx), and viewing videos directly uploaded to Facebook.



Since this has happened, I have:



attempted to update flash

attempted to update video card driver

restore back to previous time

reformatted hadr drive and put fresh copy of windows on

use multiple browsers (firefox, ie, chrome)



It seems that no one knows what the problem is online and that there are a lot of people having this problem.Why does watching videos online restart my PC?
You need to download Secunia PSI. This program will scan your computer for vulnerabilities so it will tell you if you need to update your flash or any other program. The adobe flash player has discovered a flaw and has updated its player. Before you update remove the flash player using Revo uninstaller, this will remove all traces of the program so you can install the new flash player.



http://secunia.com/vulnerability_scannin鈥?/a>



http://www.revouninstaller.com/Why does watching videos online restart my PC?
i brought the same laptop as u and man it broke within two months meanin whenever i even put a CD in, it never played.Why does watching videos online restart my PC?
Well well, you've done all the usual troubleshooting steps.

The problem i suspect is a faulty power supply or some other hard ware problem.

but either way go to the official flash website and check if you have the latest software.

as your computer is branded then the best way is contacting customer support

Official customer support:

http://welcome.hp.com/country/us/en/cont鈥?/a>

from here you can chat, call or send an email to hp and ask them for a solution

But you can call only if you are in US unlike me.

If you have any more problems don't hesitate to ask me.