PC restart after a few minutes ingame

[MithrasInvictus]

You can check your crash logs as well to see what is causing it. Here are some directions:
http://www.digitalmastersmag.com/mag...-on-windows-8/

[Jeserbiel]

Ok uninstall the beta driver and install the latest driver for my video card. But the pc still restart when I start FF.
And in the crashlog the following errors are displayed... i try to translate it from my language in english:

"The system has rebooted without cleanly shutting it down properly. This error can occur if the system stopped responding, crashed, or lost power unexpectedly."

"The system has been shut down unexpectedly at 23:30:47 on 09 10 2013."

"The driver \Driver\WudfRd failed to load for the device WpdBusEnumRoot\UMB\2&37c186b&1&STORAGE#VOLUME#."

"Through the permission settings for "Application Specific" the user "*****" (SID: S-1-5-21-2185549261-3798726918-1847232002-1001) at the address "localhost (Using LRPC)" no authorization of the type "Local Start" for the COM Server application with CLSID
{7022A3B3-D004-4F52-AF11-E9E987FEE25F}
* and APPID
{ADA41B3C-C6FD-4A08-8CC1-D6EFDE67BE7D}
* in the application container "not available" (SID: Not available) granted. The security permission can be modified using the Component Services administrative tool. "

"Program mmc.exe, version 6.2.9200.16496 can not be run on Windows and was closed. Verify the problem history in the Action Center control panel to search for information about the problem.
* Process ID: 73c
* Start time: 01cec53666140d15
* End time: 8
* Application Path: C: \ windows \ system32 \ mmc.exe
* Report ID: d85a0f27-11E3-3129-be83-78e3b5c1d9d0
* Full name of the defective package:
* Application ID, which is relative to the defective package: "


And thanks for the help^^