I'm so new with w8, I don't even have it
But google helped, event viewer W8 is same as w7. And BSOD are always 'Critical Errors' so that's what we look for on my pc.
First start event viewer (far left), click on the + next to Critical to see how many Event ID's you had (middle), double click on your Event ID (mine will be 41 for this example) (right)
Now in you can see the date &time, source, event-ID, Task Category and General/Detailed description
Then google the problem or ask here and we do it for you
PS: click pic; view image (at least in FF)
Edited by SortOfGrim - 1/27/13 at 7:57am