Windows 7 Ultimate keeps craching with IRQL_NOT_LESS OR_EQUAL afd.sys

By harshil ยท 6 replies
Jun 9, 2009
  1. Hi there,
    well basically, my windows 7 keeps crashing with IRQL_NOT_LESS_OR_EQUAL
    it also says afd.sys somewhere down there.
    It's very frustrating, it randomly happens and i lose all my work
    can anybody help me?
    I have a P5K motherboard, Intel Core2Duo E6600, 4GB Ram etc
    i have also attached my most recent minidump files
    Thanks alot for your help
  2. B00kWyrm

    B00kWyrm TechSpot Paladin Posts: 1,436   +37

    One of your errors was...
    Four of your errors are:
    Since all point to afd.sys, I would suggest...
    1. Run this comand from command prompt to see if all files on your system are correct, not corrupt: sfc /scannnow
    2. Check your Memory with Memtest...
    3. Make sure your Drivers are updated... see if you find any with yellow or red flags in your System Properties | Hardware | Device Manager.
    4. Check for Malware...
    Before doing # 4, be sure to read the stickies by Julio (first three notes at the top of the page) here...
  3. raybay

    raybay TS Evangelist Posts: 7,241   +10

    Windows 7 Ultimate ???
    Do you mean Windws VISTA Ultimate?
  4. Tedster

    Tedster Techspot old timer..... Posts: 6,002   +15

    since windows 7 is not officially out, this is probably a driver compatability error. Support will be limited until 7 is officially released.
  5. harshil

    harshil TS Rookie Topic Starter

    no, i do mean windows 7!
    and its my graphics card.. x1950pro
    beccause my computer is still running (music still playing) just that the graphics card drivers dont work properly?
    and is there anyway to fix it?
    its windows 7 RC, so it should be fully supported, and the ati website has dropped support for this now 'outdated graphics card' although its quite new!
    thanks for your help everyone btw, esp B00KWyrm!
  6. raybay

    raybay TS Evangelist Posts: 7,241   +10

    Download the latest driver for the X1950Pro that is certified to work with Windows 7, or at least, VISTA version 2.0
  7. harshil

    harshil TS Rookie Topic Starter

    i have tried, but it still causes the error... what if i install the XPDM drivers? i know they are stable, does anyone know how to install them? i get stuck with the error 'the drivers aren't for the operating system' but on microsoft it says windows 7 supports manual installation of them!
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