Computer stucks while playing hard games

Hi , im getting a PC stuck while i play hard games like Dota 2 , GTA IV etc. Idk why its happening but after i play around 1 hour the computer stucks , keyboard and mouse too ... I have to restart the PC

Diagnostic Report (1.9.0027.0):
-----------------------------------------
Windows Validation Data-->

Validation Code: 0
Cached Online Validation Code: N/A, hr = 0xc004f012
Windows Product Key: *****-*****-V9488-FGM44-2C9T3
Windows Product Key Hash: rmk1OjF0iZq7gQoRmEcpnJHr0oc=
Windows Product ID: 00426-OEM-8992662-00010
Windows Product ID Type: 2
Windows License Type: OEM SLP
Windows OS version: 6.1.7601.2.00010100.1.0.001
ID: {A4A2FF0B-7B62-4E88-B22D-A6915040CA83}(1)
Is Admin: Yes
TestCab: 0x0
LegitcheckControl ActiveX: N/A, hr = 0x80070002
Signed By: N/A, hr = 0x80070002
Product Name: Windows 7 Ultimate
Architecture: 0x00000000
Build lab: 7601.win7sp1_gdr.150316-1654
TTS Error:
Validation Diagnostic:
Resolution Status: N/A

Vista WgaER Data-->
ThreatID(s): N/A, hr = 0x80070002
Version: N/A, hr = 0x80070002

Windows XP Notifications Data-->
Cached Result: N/A, hr = 0x80070002
File Exists: No
Version: N/A, hr = 0x80070002
WgaTray.exe Signed By: N/A, hr = 0x80070002
WgaLogon.dll Signed By: N/A, hr = 0x80070002

OGA Notifications Data-->
Cached Result: N/A, hr = 0x80070002
Version: N/A, hr = 0x80070002
OGAExec.exe Signed By: N/A, hr = 0x80070002
OGAAddin.dll Signed By: N/A, hr = 0x80070002

OGA Data-->
Office Status: 103 Blocked VLK
Microsoft Office Enterprise 2007 - 103 Blocked VLK
OGA Version: N/A, 0x80070002
Signed By: N/A, hr = 0x80070002
Office Diagnostics: 025D1FF3-364-80041010_025D1FF3-229-80041010_025D1FF3-230-1_025D1FF3-517-80040154_025D1FF3-237-80040154_025D1FF3-238-2_025D1FF3-244-80070002_025D1FF3-258-3

Browser Data-->
Proxy settings: N/A
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Win32)
Default Browser: C:\Program Files\Google\Chrome\Application\chrome.exe
Download signed ActiveX controls: Prompt
Download unsigned ActiveX controls: Disabled
Run ActiveX controls and plug-ins: Allowed
Initialize and script ActiveX controls not marked as safe: Disabled
Allow scripting of Internet Explorer Webbrowser control: Disabled
Active scripting: Allowed
Script ActiveX controls marked as safe for scripting: Allowed

File Scan Data-->
File Mismatch: C:\Windows\system32\wat\watadminsvc.exe[Hr = 0x80070003]
File Mismatch: C:\Windows\system32\wat\npwatweb.dll[Hr = 0x80070003]
File Mismatch: C:\Windows\system32\wat\watux.exe[Hr = 0x80070003]
File Mismatch: C:\Windows\system32\wat\watweb.dll[Hr = 0x80070003]

Other data-->
Office Details: <GenuineResults><MachineData><UGUID>{A4A2FF0B-7B62-4E88-B22D-A6915040CA83}</UGUID><Version>1.9.0027.0</Version><OS>6.1.7601.2.00010100.1.0.001</OS><Architecture>x32</Architecture><PKey>*****-*****-*****-*****-2C9T3</PKey><PID>00426-OEM-8992662-00010</PID><PIDType>2</PIDType><SID>S-1-5-21-194626300-1967051692-3833940851</SID><SYSTEM><Manufacturer>NVIDIA</Manufacturer><Model>AWRDACPI</Model></SYSTEM><BIOS><Manufacturer>Phoenix Technologies, LTD</Manufacturer><Version>6.00 PG</Version><SMBIOSVersion major="2" minor="2"/><Date>20070611000000.000000+000</Date></BIOS><HWID>3FBC3007018400FA</HWID><UserLCID>0409</UserLCID><SystemLCID>0409</SystemLCID><TimeZone>Central European Standard Time(GMT+01:00)</TimeZone><iJoin>0</iJoin><SBID><stat>3</stat><msppid></msppid><name></name><model></model></SBID><OEM><OEMID>ACRSYS</OEMID><OEMTableID>ACRPRDCT</OEMTableID></OEM><GANotification/></MachineData><Software><Office><Result>103</Result><Products><Product GUID="{90120000-0030-0000-0000-0000000FF1CE}"><LegitResult>103</LegitResult><Name>Microsoft Office Enterprise 2007</Name><Ver>12</Ver><Val>ACD7202654E586</Val><Hash>fFic3JgCreGGRxyF8uMWB4R4Jcg=</Hash><Pid>89388-707-1528066-65057</Pid><PidType>14</PidType></Product></Products><Applications><App Id="15" Version="12" Result="103"/><App Id="16" Version="12" Result="103"/><App Id="18" Version="12" Result="103"/><App Id="19" Version="12" Result="103"/><App Id="1A" Version="12" Result="103"/><App Id="1B" Version="12" Result="103"/><App Id="44" Version="12" Result="103"/><App Id="A1" Version="12" Result="103"/><App Id="BA" Version="12" Result="103"/></Applications></Office></Software></GenuineResults>

Spsys.log Content: 0x80070002

Licensing Data-->
Software licensing service version: 6.1.7601.17514

Name: Windows(R) 7, Ultimate edition
Description: Windows Operating System - Windows(R) 7, OEM_SLP channel
Activation ID: 7cfd4696-69a9-4af7-af36-ff3d12b6b6c8
Application ID: 55c92734-d682-4d71-983e-d6ec3f16059f
Extended PID: 00426-00178-926-600010-02-1033-7600.0000-1102015
Installation ID: 021213573691683566056115552292534012958236110485289743
Processor Certificate URL: SpcService Web Service
Machine Certificate URL: RacService Web Service
Use License URL: UseLicenseService Web Service
Product Key Certificate URL: PkcService Web Service
Partial Product Key: 2C9T3
License Status: Licensed
Remaining Windows rearm count: 4
Trusted time: 5/6/2015 10:16:08 PM

Windows Activation Technologies-->
HrOffline: 0x00000000
HrOnline: N/A
HealthStatus: 0x0000000000000000
Event Time Stamp: N/A
ActiveX: Not Registered - 0x80040154
Admin Service: Not Registered - 0x80040154
HealthStatus Bitmask Output:


HWID Data-->
HWID Hash Current: NgAAAAEAAgABAAEAAgACAAAAAwABAAEA6GG41Cb6SCQuBuwx3ESw+bYQmoj4luQc7yRHqSqF

OEM Activation 1.0 Data-->
N/A

OEM Activation 2.0 Data-->
BIOS valid for OA 2.0: yes
Windows marker version: 0x20001
OEMID and OEMTableID Consistent: yes
BIOS Information:
ACPI Table Name OEMID Value OEMTableID Value
APIC Nvidia AWRDACPI
FACP Nvidia AWRDACPI
MCFG Nvidia AWRDACPI
SSDT PmRef Cpu0Ist
SSDT PmRef Cpu0Ist
SLIC ACRSYS ACRPRDCT

i dont get it nvm this is the code.. What to do?