Windows 7 How can I prevent bluescreen event

[aliboy38]

Sometimes I accord blue screen event and my computer restarts. when I'm playing games or I'm browsing web pages or maybe other times too.
This is the error log when my computer restarts and shows windows has recovered from an upexcted shutdown :
Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7601.2.1.0.256.1
Locale ID: 1065

Additional information about the problem:
BCCode: 109
BCP1: A3A039D898B82507
BCP2: 0000000000000000
BCP3: A001994ABE6B3D97
BCP4: 0000000000000101
OS Version: 6_1_7601
Service Pack: 1_0
Product: 256_1

Files that help describe the problem:
C:\Windows\Minidump\121012-12339-01.dmp
C:\Users\PC\AppData\Local\Temp\WER-21122-0.sysdata.xml

 

[usasma]

Please provide this info to get us started: http://windows7forums.com/blue-screen-death-bsod/38837-how-ask-help-bsod-problem.html