Bonjour,
Je rencontre un ploblème récurrent sur plusieurs Tablettes "Lenovo Thinkpad Tablet 2" en Windows 8 Pro 32 Bits avec Bitdefender IS 2013
Windows 8 plante plusieurs fois par jour avec l'erreur suivante DPC_WATCHDOG_VIOLATION :
On Fri 12/07/2013 01:30:34 GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\071213-16750-01.dmp
This was probably caused by the following module: trufos.sys (trufos+0x18E8F)
Bugcheck code: 0x133 (0x1, 0x1E00, 0x0, 0x0)
Error: DPC_WATCHDOG_VIOLATION
file path: C:\WINDOWS\system32\drivers\trufos.sys
product: BitDefender Antivirus
company: BitDefender S.R.L.
description: Trufos Kernel Module
Bug check description: The DPC watchdog detected a prolonged run time at an IRQL of DISPATCH_LEVEL or above.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. This problem might be caused by a thermal issue.
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: trufos.sys (Trufos Kernel Module, BitDefender S.R.L.).
Google query: BitDefender S.R.L. DPC_WATCHDOG_VIOLATION
Ceci est très bloquant 
Merci de votre aide.
Cordialement
Fabrice GESLIN
Directeur Technique Iténéo
