Windows explorer crashes/restarts

Here is the error log from one of the crashes.

Code:

Source
Windows Explorer

Summary
Stopped working

Date
‎18/‎09/‎2010 18:52

Status
Report sent

Description
Faulting Application Path:    C:\Windows\explorer.exe

Problem signature
Problem Event Name:    APPCRASH
Application Name:    Explorer.EXE
Application Version:    6.1.7600.16450
Application Timestamp:    4aebab8d
Fault Module Name:    Explorer.EXE
Fault Module Version:    6.1.7600.16450
Fault Module Timestamp:    4aebab8d
Exception Code:    c000041d
Exception Offset:    000000000002cc2b
OS Version:    6.1.7600.2.0.0.256.1
Locale ID:    2057
Additional Information 1:    9d35
Additional Information 2:    9d352eeb48f756eef3e09921a012e0a8
Additional Information 3:    ca2c
Additional Information 4:    ca2c069770e7f64d60f91ac290056ba5

Extra information about the problem
Bucket ID:    20355333

It usually happens when I download something, or when I try to play certain games such as CoD 4 but only when I try to connect to an online server. It also used to crash whenever I loged into windows and had nod32 running but I've uninstalled nod and that problems gone.

Code:

sfc /scannow

fixed the problem for me aswell, thanks