BSOD Random Startups

I'm sorry, my english is not good enough to understand 'Happened when a breaker blew in my house and computer shutdown unexpectedly'
I get the unexpected shutdown, but don't understand the rest. I can't translate it proper to my own language to understand it.

I suggest you check the link below for updating your audio driver :)
Driver Reference Table - RTKVHD64.sys

Code:

*** WARNING: Unable to verify timestamp for RTKVHD64.sys
*** ERROR: Module load completed but symbols could not be loaded for RTKVHD64.sys
2: kd> lmvm RTKVHD64
start             end                 module name
fffff800`8b970000 fffff800`8bc32280   RTKVHD64 T (no symbols)           
    Loaded symbol image file: RTKVHD64.sys
    Image path: \SystemRoot\system32\drivers\RTKVHD64.sys
    Image name: RTKVHD64.sys
    Timestamp:        Tue Jun 14 13:28:43 2011 (4DF745EB)
    CheckSum:         002C7D9A
    ImageSize:        002C2280
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4