Solved BSOD Locale ID:1033 - BCCode: 4a - Win7 Ultimate 64-bit

[yrralrellim]

First BSOD since purchasing this used ASUS K54C (X54C) laptop over two weeks ago. OS screen access was locked by me overnight and there was no immediate\direct activity going on by any user. Discovered BSOD message when logging back on this morning.

Sorry .... Error in title: THIS machine in Windows 7 Home Premium 64-bit.

 

[Thedoctor44]

It appears that the bugcheck you have is caused by an IRQL not lowering to low-level (or passive mode) when the processor returns to user-mode thread scheduling. It points to vsserv.exe which is a program called Bitdefender. I would highly recommend uninstalling Bitdefender and installing another antivirus like Microsoft security essentials or avast antivirus.

 

[yrralrellim]

MSE to replace BitDefender

Thanks so much! I'll give that a whirl and start a new post if BSOD occurs with MSE.