Bccode error

[kumbhas]

Hi. I'm facing a sudden system halt and re boot with an error message

BCCode : f4 BCP1 : 00000003 BCP2 : 85743020 BCP3 : 85743194 BCP4 : 80604420 OSVer : 5_1_2600 SP : 2_0 Product : 256_1

I remember this problem starting since a week immediately on restarting after installing microsoft windows updates. Can any one help me to resolve this ?
kumar