Ecran bleu et redémarrage

Bonjour,

j'ai un énorme problème avec mon ordinateur portable Acer, (Intel core
duo T5750, 3GB DDR2, 250 GB HDD)

Lors de démarrage , j'ai un écran bleu qui contient le message d'erreur suivante :

A Problem has been detected and windows has been shut down to prevent dawn to your computer.

REGISTRY_ERROR

If this is the first time you've seen this stop error screan, restart your computer. If this screen appear again, folllow these steps:

Check to make sure any new hardware or sofware is properly installed.
If this is a new istallation, ask your hardware or software manufacturer for any windows updates your might need

If problem continue, disable or removeany newly installation hardware or software. disable bios memory options such as caching or shadowing.
if you need to usesafe mode to remove disable componets, restart your computer, pressF8 to select advanced startup options, and then select safe lode

TECHNICAL INFORMATION .

***STOP: 0X00000051(0X00000001.0XBAC2420B,0X0130B000,0X00000368)

Collecting data for crash dump...
initializibg disk for crash...
biginning dump of physical memory.
dumping physical memory to disk : GO

je peut acceder au mode sans echec ! j'ai pas installé une application récente !je ne sais plus quoi faire
en plus c'est pas le moment car je suis en plein préparation de mon Master !!!

SVP aidez moi !