BSOD - BCCode 50

[pepcsl]

Hi All,
My Windows 7 laptop is randomly crashing BSOD. Runs for a day and then next time crashes after an hour.
Error I get is:
Problem Signature: Bluescreen
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 2057

Additional info about the problem:
BCCode: 50
BCP1: FFFFF8811D4426AO
BCP2: 000000000000000000
BCP3: FFFFF88005962878
BCP4: 0000000000000005
OS Version: 6_1_7601
Service Pack: 1_0
Product: 256_1

I've ran chkdsk & sfc /scannow and scanned for viruses etc, but its still happening. Please can anyone help diagnose what the problem is? Thanks

 

[Tmagic650]

What antivirus program are you running?

 

[pepcsl]

AV is Mcafee 8.8 enterprise.... I upgraded from 8.7 but it crashes on both versions

 

[Tmagic650]

Remove McAfee entirely and try free MSE:
http://windows.microsoft.com/en-us/windows/security-essentials-download
See if this stops the BSOD's