Ecran bleu

Bonjour,

J'espère que quelqu'un pourra m'aider...

Je suis sous windows vista, et j'ai souvent cette écran qui s'affiche (ci dessous) et l'ordinateur redémarre

A problem has been detected and windows has been shut down to présent damage to your computer.

If this is the first time you’re seen this stop error screen, restart your computer. If this screen appears again, fallow these steps:

Run a system diagnostic utility supplied by your hardware manufacter. In particulier, run a memory check, and check for faulty or mismatched memory. Try changing video adapters.

Disable or remove and newly installed hardware and drivers. Disable or remove any newly installed software. If you need to use safe mode to remove or disable composents, restart your computer, press F8 to select advanced, startup options, and then select safe mode.

Technical informations:
STOP: 0X0000007F (0X00000008, 0X854740c0, 0X00000000, 0X00000000)

Collecting data for crash dump…
Initializing disk for crash dump…
Beginning dump of physical memory
Dumping physical memory to disk: 100
Physical memory dump complete
Contact your system admin or technical support group for further assistance