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Automatically stops and starts

Recently, I have purchased the Acer Extensa 5420-5571 mobile technology laptop in Futureshop. When i was doing the windows update, i was not able to complete it. Suddenly, vitsa operating system is stopping and blue screen displaying the following message

"A problem has been detected and windows has been shutdown to prevent to damage your computer. IRQL_NOT _LESS_or _EQUAL. Disable BIOS memory options such as caching or shadowing.

Then immediately starting with safe mode, safe mode with networking or starting with normal mode.

I do not know how to solve this problem. could you please help me?

Posted by dasok26 on


2 Answers


Thanks for your information. Several times, I have tried the problem is still existing.

Posted on Aug 18, 2008


Steve Si

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  • 395 Answers

This is usually because of a bad driver. Boot the computer and press F8 every half second until you see a black&White text menu - then choose safe mode boot

If it does boot then try System Restore back to earlier point in time.

Report back what happens?

Posted on Aug 17, 2008

  • wii lyn Apr 28, 2012

    have Extensa 5420-5038. I have same problem after trying to get rid malware but then it frozed. It boots to Safe mode, but was unable to restore to earlier points on System Restore. so what do I do now??? HELP. thanks.



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