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Posted on Oct 02, 2009

IRQL_NOT_LESS_OR_EQUAL error with BSOD

I am trying to help my friend fix his Dell Inspiron 1545 laptop. It runs fine in SafeMode, but when you try to start up normal it goes to a BSOD, with an error message stating IRQL_NOT_LESS_OR_EQUAL - I'm pretty sure it's a hardware error -- It is not overheating. I would like to fix it without having to open the case if possible. I have run a chkdsk and it closes the window as soon as it is done running so I can't read what it says.

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  • Contributor 13 Answers
  • Posted on Oct 02, 2009
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If you can run it in safe mode, have you tried doing a system restore to a previous restore point (one that was at a time when you could start the machine)? Sometimes software or drivers that are installed can cause problems and restoring back to a previous good state may resolve the issue.

http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/app_system_restore_hss_safemode.mspx

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