Windows 7 Blue Screen Of Death with error: IRQL_NOT_LESS_OR_EQUAL

zillah

Honorable Member
Hello, everyone

This happens frequent 4 times or 5 times a week

I use my desktop windows 7 64 bit (OS 3 years old) mostly for browsing, and I use Firefox mainly for browsing what happens Firefox crashes and then a message pops up as below :


And then blue screen of death with error: IRQL_NOT_LESS_OR_EQUAL.


Sometime even not browsing if I open a pdf document also that crashes the system and the same blue screen of death with error IRQL_NOT_LESS_OR_EQUAL pops up

Any troubleshoot should I do to fix the issue ?

Thanks
 
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