subject: Why Does the Blue Screen IRQL Not Less or Equal Appear? [print this page]
The blue screen error “IRQL Not Less or Equal” occurs due to several reasons including a wrong memory access or any other critical system problem. Among the most frequent reasons for the error occurrence are the driver problems, especially those that occur after installation of updated hardware drivers. RAM problems, system file corruption, inappropriate hardware, and some software problems are some of the other reasons. In order to deal with the problem, you should review your recent system activity and examine drivers, memory and Windows system files.
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