Windows 8 Blue screen 03x0000005B

Solution
Code:
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Use !analyze -v to get detailed debugging information.

BugCheck 50, {fffff900c551bcf0, 0, fffff9600036260d, 0}


Could not read faulting driver name
Probably caused by : win32k.sys ( win32k!SFMLOGICALSURFACE::OwnsSurfaceCleanup+2d )

Followup: MachineOwner

You still need to update your bios and of course the service pack too...
The chkdsk scan looks at the state of your HDD and if possible repairs any corrupt sectors. I see from the sfc scan that the number 7601 is there which should mean that SP1 is installed. Do you still get any freezing or bsod issues?

Not yet.