Ecran bleu de la mort

Bonjour,
Mon pc qui est sous windows n'arrete pas d'afficher le fameux écran bleu de la mort. En utilisant le logiciel WHOCRASHED j'ai pu determiner la cause il ma afficher le diagnostique suivant :
crash dump file: C:\windows\memory.dmp
This was probably caused by the following module: atikmpag.sys (0xFFFFF880042E4FB8)
Bugcheck code: 0x116 (0xFFFFFA80073EF010, 0xFFFFF880042E4FB8, 0x0, 0x2)
Error: VIDEO_TDR_ERROR
file path: C:\windows\system32\drivers\atikmpag.sys
product: AMD driver
company: Advanced Micro Devices, Inc.
description: AMD multi-vendor Miniport Driver
Bug check description: This indicates that an attempt to reset the display driver and recover from a timeout failed.
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: atikmpag.sys (AMD multi-vendor Miniport Driver, Advanced Micro Devices, Inc.).
Google query: Advanced Micro Devices, Inc. VIDEO_TDR_ERROR

Or je ne sais absolument pas quoi faire pour réparer tout ça..
Merci de bien vouloir m'aider !