Mon pc ne démarre plus certains jeux.

Voici ma configuration
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System Information
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Time of this report: 8/22/2014, 22:38:39
Machine name: Yohann-PCacer
Operating System: Windows 7 Édition Familiale Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.140303-2144)
Language: French (Regional Setting: French)
System Manufacturer: Acer
System Model: Aspire M3985
BIOS: BIOS Date: 03/12/12 09:47:18 Ver: 04.06.05
Processor: Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz (8 CPUs), ~3.4GHz
Memory: 16384MB RAM
Available OS Memory: 16332MB RAM
Page File: 7133MB used, 25829MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 32bit Unicode

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DxDiag Notes
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Display Tab 1: No problems found.
Display Tab 2: No problems found.
Sound Tab 1: No problems found.
Sound Tab 2: No problems found.
Input Tab: No problems found.

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DirectX Debug Levels
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Direct3D: 0/4 (retail)
DirectDraw: 0/4 (retail)
DirectInput: 0/5 (retail)
DirectMusic: 0/5 (retail)
DirectPlay: 0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow: 0/6 (retail)

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Display Devices
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Card name: NVIDIA GeForce GT 630
Manufacturer: NVIDIA
Chip type: GeForce GT 630
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_0FC2&SUBSYS_0630174B&REV_A1
Display Memory: 4038 MB
Dedicated Memory: 1990 MB
Shared Memory: 2048 MB
Current Mode: 1920 x 1080 (32 bit) (60Hz)
Monitor Name: Generic PnP Monitor
Monitor Model: SMXL2370HD
Monitor Id: SAM072B
Native Mode: 1920 x 1080(p) (60.000Hz)
Output Type: HDMI
Driver Name: nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um
Driver File Version: 9.18.0013.3523 (English)
Driver Version: 9.18.13.3523
DDI Version: 11
Driver Model: WDDM 1.1
Driver Attributes: Final Retail
Driver Date/Size: 3/4/2014 16:35:23, 17755424 bytes
WHQL Logo'd: Yes
WHQL Date Stamp:
Device Identifier: {D7B71E3E-4C82-11CF-3879-3D261CC2C435}
Vendor ID: 0x10DE
Device ID: 0x0FC2
SubSys ID: 0x0630174B
Revision ID: 0x00A1

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Voici les jeux que je démarre:
-WOW (world of warcraft)
-Fifa 14
-BF3
-BF4 (1 fois sur 2)
-Minecraft
-starcraft
-diablo3
-Bioshok infinite
-Empire total war
-Super meat boy
-Horse racing manager 2
-Starter order 6
-Skyrim (normal et online)
-Left 4 Dead
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Et voici ceux que je n'arrive pas à démarer:
-GTA IV
-Call of duty Ghost
-Mass effect 1

Merci d'avance pour votre aide :D