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IRQL_NOT_LESS_OR_EQUAL upon windows 8.1 install

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  • Windows 7
  • Computers
  • Windows 8
Last response: in Windows 8
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September 8, 2014 8:00:56 PM

Hey y'all! So I have been trying to install Windows 8.1 Pro onto my computer. I currently have Windows 7 Ultimate. It will install all the way, my computer will restart, but when it tries to setup 8.1 I get the IRQL_NOT_LESS_OR_EQUAL message and it automatically reverts my computer back to windows 7. Any advice?

More about : irql equal windows install

a b $ Windows 7
a b * Windows 8
September 8, 2014 8:17:37 PM

wow,there is a lot of things could be causing this one,from bad drivers to needing a bios update.this one is not really in my area so all i can do is conjecture.i would google the problem,especially search the toms forumns.here is a link to start.
http://www.tomshardware.com/faq/id-1853792/fix-irql-equ...
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September 26, 2014 5:39:11 PM

mpgraham1 said:
Hey y'all! So I have been trying to install Windows 8.1 Pro onto my computer. I currently have Windows 7 Ultimate. It will install all the way, my computer will restart, but when it tries to setup 8.1 I get the IRQL_NOT_LESS_OR_EQUAL message and it automatically reverts my computer back to windows 7. Any advice?



THE FIX
You may want to write these down or have a way of knowing what to do, you will have no internet on PC for a majority of the time!

1. Download 8.1 from store

2. When its done DO NOT restart, click cancel and then shut down, making sure all your old drivers for internet card are uninstalled AND 8.1 DRIVERS ARE DOWNLOADED, Not installed!

3. When shut down, unplug PC and open up case, and remove your Internet card.

4. Turn on PC and let PC update to 8.1

5. Install the 8.1 drivers for internet card which should have been downloaded not installed!

6. Shut down PC

7. Put internet card back in

8. Boot up PC, set up internet connection, and enjoy your done! You have windows 8.1!

I tried this on my PC and it worked thought I'd share it on my own post where I couldn't find a fix.

My original post here :D 
http://www.tomshardware.com/answers/id-2277656/fix-irql...


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a b $ Windows 7
September 26, 2014 5:40:31 PM

Do a clean install not an update from win7. If the Win8 DVD supports it
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