BSOD during web browsing, video games

[GyroW]

Hi all,
I'm Wouter and last month I got a new HDD and installed Windows 7 64 Ultimate.
In the past week I have been getting Blue screens too much to my liking, during said Blue Screens I was web browsing, playing Cities Skyline and Magicite. Attached is the file that is generated by DM Log collector.
Thanks in advance.

 

[Arc]

Install Service pack 1 and all other windows updates. Otherwise the system will remain vulnerable to threats including BSODs.

[COLOR=Red]Windows 7 Kernel Version 7600 MP[/COLOR] (4 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 7600.16385.amd64fre.win7_rtm.090713-1255

• Learn how to install Windows 7 Service Pack 1 (SP1)
• Service Pack and Update Center - Microsoft Windows

Report us for any further BSOD after installing service pack 1.
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BugCheck 3B, {c0000005, fffff960001a4283, fffff8800a74e020, 0}

Probably caused by : win32k.sys ( win32k!HmgLockEx+a3 )

Followup: MachineOwner
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