BlueScreenView
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http://www.nirsoft.net/utils/blue_screen_view.html
It that was the message [IRQ_LESS_OR_EQUAL...] it is more than likely a faulty driver.
If you want to track down past BSODs try http://www.nirsoft.net/utils/blue_screen_view.html which allows you to look at past BSODs and lists the drivers involved.
I have found this incredibly useful for troubleshooting.
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http://www.nirsoft.net/utils/blue_screen_view.html













the version number






