BSOD playing any game.

My GEForce GTS450 video card is new, and properly installed, also updated the drivers..

eh? u sure? My Windows seems to be a bit old.. Should I reformat it? or can I still fixed it?

Your dump file suggests you have an issue with nvlddmkm.sys.

I would suggest you uninstall your graphics card drivers and install the most recent release. Hopefully this will resolve your issue.

i've already tried that.. but the BSOD is still acting up

Code:

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: {0D3ACAF3-DD44-43FC-84A4-165C563DCA37}(1)
Is Admin: Yes
TestCab: 0x0
LegitcheckControl ActiveX: N/A, hr = 0x80070002
Signed By: N/A, hr = 0x80070002
Product Name: Windows 7 Ultimate
Architecture: 0x00000009
Build lab: 7601.win7sp1_gdr.120503-2030
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:\Users\User\AppData\Local\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-->

Other data-->
Office Details: <GenuineResults><MachineData><UGUID>{0D3ACAF3-DD44-43FC-84A4-165C563DCA37}</UGUID><Version>1.9.0027.0</Version><OS>6.1.7601.2.00010100.1.0.001</OS><Architecture>x64</Architecture><PKey>*****-*****-*****-*****-2C9T3</PKey><PID>00426-OEM-8992662-00010</PID><PIDType>2</PIDType><SID>S-1-5-21-2894289503-2342185010-3080387989</SID><SYSTEM><Manufacturer>System manufacturer</Manufacturer><Model>System Product Name</Model></SYSTEM><BIOS><Manufacturer>American Megatrends Inc.</Manufacturer><Version>3501</Version><SMBIOSVersion major="2" minor="6"/><Date>20120207000000.000000+000</Date></BIOS><HWID>652C3007018400FE</HWID><UserLCID>0409</UserLCID><SystemLCID>0409</SystemLCID><TimeZone>Taipei Standard Time(GMT+08:00)</TimeZone><iJoin>0</iJoin><SBID><stat>3</stat><msppid></msppid><name></name><model></model></SBID><OEM><OEMID>HPQOEM</OEMID><OEMTableID>SLIC-WKS</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>89388-707-1528066-65568</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-->
Input Error: Can not find script file "C:\Windows\system32\slmgr.vbs".

Windows Activation Technologies-->
HrOffline: 0x00000000
HrOnline: 0x00000000
HealthStatus: 0x0000000000000000
Event Time Stamp: 6:18:2012 16:55
ActiveX: Registered, Version: 7.1.7600.16395
Admin Service: Registered, Version: 7.1.7600.16395
HealthStatus Bitmask Output:


HWID Data-->
HWID Hash Current: NAAAAAIABAABAAEAAAACAAAAAQABAAEA6GFSEHcW4i3g2+oCYjRK3Z68nmGygm+EJgMucw==

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            ALASKA        A M I
  FACP            ALASKA        A M I
  HPET            ALASKA        A M I
  MCFG            ALASKA        A M I
  SSDT            IdeRef        IdeTable
  SSDT            IdeRef        IdeTable
  SSDT            IdeRef        IdeTable
  DMAR            INTEL         SNB 
  BGRT            ALASKA        A M I
  SLIC            HPQOEM        SLIC-WKS

is this it?

I'll just reformat this computer.. seems like some windows and system files are corrupted.. :) thanks for the help anyway..

i don't know, this is from my brother that was passed down to me.. I guess the Win7 is from his friend or I don't know..