A Blue Screen of Death (BSoD) is the error screen you see when Windows has a major issue. It halts the PC and displays off-white text on a blue background. There are a number of BSoD errors. One such error is...
DRIVER IRQL NOT LESS THAN OR EQUAL
This could indicate driver issues, or a bad Windows Service caused by a backup utility or antivirus scanner. T
You may see the error message only for a brief time before the system reboots. This makes it difficult to gather information about any possible driver causing the problem.