BSOD and system restarts by itself, please help me

[Libin]

Here's what the problem is...
Source
Windows

Summary
Shut down unexpectedly

Date
?05-?Aug-?13 9:27 PM

Status
Not reported

Problem signature
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 1033

Files that help describe the problem
080513-16411-01.dmp
sysdata.xml
WERInternalMetadata.xml

Extra information about the problem
BCCode: 51
BCP1: 00000001
BCP2: 89C1B7D0
BCP3: 011C3000
BCP4: 00000374
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1

 

[Arc]

Post it following the Blue Screen of Death (BSOD) Posting Instructions.

Also, Install Service pack 1 and all other windows updates. Otherwise the system will remain vulnerable to threats.
Learn how to install Windows 7 Service Pack 1 (SP1)
Service Pack Center - Microsoft Windows

Scan the system for possible virus infection with the following programs.

• Anti-rootkit utility TDSSKiller
• Windows Defender Offline

Run SFC /SCANNOW Command - System File Checker

Let us know the results.
http://www.sevenforums.com/tutorials/139810-sfc-scannow-run-command-prompt-boot.html