Recovered From a System Error

I was scanning with AVG, and when I came baack to the pc, there was a dialogue box on the screen with recovering from serious error message.
C:\DOCUME~1\Owner\LOCALS~1\Tem

p\WERfdde.dir00\Mini032608-01.dmp
C:\DOCUME~1\Owner\LOCALS~1\Tem

p\WERfdde.dir00\sysdata.xml

System Error

BCCode : 1000007e BCP1 : C0000005

BCP2 : F73BEB7F BCP3 :

F78BAA38
BCP4 : F78BA734 OSVer : 5_1_2600

SP : 2_0 Product : 768_1

Any ideas what caused this? No new software or programs have been installed. thanks.

 

Will try to attach minidmp