Hi,
It may help to look at the minidump files from the blue screen crashes.
Can you zip up the minidump files in the C:\Windows\Minidump folder and make available (provide link) via a public folder on OneDrive or similar site.
Here's a link on using OneDrive:
http://windows.microsoft.com/en-ca/onedrive/sha...
If you have problems zipping the minidump files copy the minidump files to another location such as a folder on the Desktop.
Also, you do not necessarily have to zip up the minidump files, you can upload them one at a time.