Problème carte graphique de base windows

bonjour

voila mon souci j'i changer mon système d'exploitation de Vista en Windows 8 le souci c'est que maintenant ma carte graphique m marque "carte graphique de base" je pense que c'est un problème de pilote mais je n'arrive pas a les trouver,si quelqu'un pourrais m'aider sa serait cool.
voila ma configuration pc ,j'ai utilisé dxdial en espérant que sa suffira:

System Information
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Time of this report: 8/12/2014, 16:55:08
Machine name: PC-DE-SALON
Operating System: Windows 8 Professionnel N 32-bit (6.2, Build 9200) (9200.win8_gdr.140502-1507)
Language: French (Regional Setting: French)
System Manufacturer: Acer
System Model: Aspire SA80
BIOS: Phoenix - AwardBIOS v6.00PG
Processor: Intel(R) Celeron(R) CPU 2.80GHz, ~2.8GHz
Memory: 2048MB RAM
Available OS Memory: 1984MB RAM
Page File: 963MB used, 3004MB available

Display Devices
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Card name: Carte vidéo de base Microsoft
Manufacturer: (Types d'écrans standard)
Chip type: SiS
DAC type: Silicon Integrated Systems Corp
Device Type: Display-Only Device
Device Key: Enum\PCI\VEN_1039&DEV_6330&SUBSYS_0C4C105B&REV_00
Display Memory: 256 MB
Dedicated Memory: 0 MB
Shared Memory: 256 MB
Current Mode: 1024 x 768 (32 bit) (64Hz)
Monitor Name: Moniteur Plug-and-Play générique
Monitor Model: ASUS VW223
Monitor Id: ACI22A7
Native Mode: 1680 x 1050(p) (59.954Hz)
Output Type: Other
Driver Name:
Driver File Version: ()
Driver Version: 6.2.9200.16384
DDI Version: 11.1
Feature Levels: 11.1,11.0,10.1,10.0,9.3,9.2,9.1
Driver Model: WDDM 1.2
Graphics Preemption: DMA
Compute Preemption: DMA
Driver Attributes: Final Retail
Driver Date/Size: , 0 bytes
WHQL Logo'd: n/a
WHQL Date Stamp: n/a
Device Identifier: {D7B71AF4-43CC-11CF-2B22-F003ADC2CB35}
Vendor ID: 0x1414
Device ID: 0x008C
SubSys ID: 0x00000000
Revision ID: 0x0000
Driver Strong Name: display.inf:10809047d4324726:MSBDA:6.2.9200.16384:pci\cc_0300
Rank Of Driver: 00FB2006