Unexpected shutdown

Zivjo!
Se mi je že večkrat zgodil tale unexpected shutdown, pa nevem kaj bi ga lahko povzročil...neki drajverji pomoje.
Sem kopiral report:
Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 1060

Additional information about the problem:
BCCode: a
BCP1: FFFFFFFFFFFFFFFF
BCP2: 0000000000000002
BCP3: 0000000000000000
BCP4: FFFFF80002CD0BB6
OS Version: 6_1_7601
Service Pack: 1_0
Product: 256_1

Files that help describe the problem:
C:\Windows\Minidump\030512-16036-01.dmp
C:\Users\Urban\AppData\Local\Temp\WER-34367-0.sysdata.xml

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Tle sta tista dva fajla, če kdo to zna prepoznat