BSOD playing World of Warcraft or Watch Youtube HD Videos

Hello everyone,

first of all, my school English is not the best

In the last few weeks i have serval BSOD. 95% by playing World of WarCraft 5% by watching HD YouTube Videos.
I tried to locate the Problem. I have change the Graphic Card to an old Nvidia 8800 GTS and tried to change the Power Supply. Deactivate the Hardware Acceleration in Firefox. Also I reinstall Windows complete new. Update Windows and all Drivers. But the BSOD are still there. Some Days no BSOD. Another Day 3 times in a few hours

Here are some Information from WhoCrashed:

Crash dump directory: C:\Windows\Minidump

Crash dumps are enabled on your computer.

On Thu 08.10.2015 08:05:42 GMT your computer crashed
crash dump file: C:\Windows\Minidump\100815-9469-01.dmp
This was probably caused by the following module: Unknown ()
Bugcheck code: 0x0 (0x0, 0x0, 0x0, 0x0)
Error: CUSTOM_ERROR
A third party driver was identified as the probable root cause of this system error.
Google query: CUSTOM_ERROR

The information from DM Log Collector:

APC-PC-08_10_2015_202658,22.zip

I hope someone has an idea and can help me.

Avatarius

A minidump file is present. And my pc is configured for small dump files. But I can not copy or zip as the read-only folder. I am logged in as administrator and tried to cancel the write protection in order to send you the minidump.
All tutorials I've found so far to the write protection only temporarily set aside have not been working.
At the same time I have again changed the video card and the power supply to an older model. Since after all day no more BSOD.
Maybe you have an idea to let you get the minidump?
Thank you

I tried to pick up now 5 guides the write protection. None worked until now. I spend it on first.
I look how does the old hardware. Tomorrow I will then install the new power supply and see if it is stable. If so, then it will be up to the graphics card or the driver for it.
Thank you first