All Cd units are not recognized

By Marchatorium
Aug 15, 2006
  1. I have an identical problem that the one I quote below; but although I know I have to delete the .sys file in discuss, the answer says that I hve to remove the lowerfilter and upperfilter keys too, and I unfortunately don't know how to.
    Could you help me!??? please!

    Quoting begins:

    "08-08-2006, 11:20 PM
    K1N3tIc [0N3]'s Avatar
    K1N3tIc [0N3] K1N3tIc [0N3] is offline
    Newcomer, in training

    Join Date: Jul 2006
    Location: Chicago, IL
    Posts: 6
    Question PxHelp20.sys
    running Windows XP Media Center w/SP2, Pentium M 1.86G, 1G DDR2 RAM.

    Windows will not recognize any CD/DVD drive that is installed. The drive icon doesn't appear in "My Computer" under "Devices with removable storage".

    Event Viewer/System: Event Id 7026, Error, "The following boot-start or system-start driver(s) failed to load: PxHelp20"

    Device Manager/DVD_CD-ROM drives: "Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (code 39)

    << Ok, I've searched high and low for this file which is a .sys file. I always come to a website that wants me to pay for the file. I copied my buddies PxHelp20.sys file and installed it in the proper file (%systemroot%/WINDOWS/system32/drivers), but alas it's device specific. This I know because after placing said file in the drivers folder and restarting, windows would not boot. All is well now though. The drive worked when I used it to boot from.

    I've searched the manufacturers website, Philips, to no avail.
    I don't necessarily need the answer, just point me in the right direction. I am an aspiring geek although not being able to figure this one out on my own has severely deminished what little cred I have.
    "Do or do not. There is no try."
  2. Nodsu

    Nodsu TS Rookie Posts: 5,837   +6

    How about just uninstalling the optical drive and all the IDE devices in Device Manager and letting Windows reinstall the drivers at next reboot?
  3. Marchatorium

    Marchatorium TS Rookie Topic Starter

    Hi! and thank you!
    well I tried to uninstall both drives and nothing happened. It says that They're not functioning correctly, because the drivers are corrupt or missing apparently.
  4. Marchatorium

    Marchatorium TS Rookie Topic Starter

    Thank You!
    I've deleted the forementioned keys
    Everything's allright now!

    thanks for your time and kindness
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