Why does my USB keyboard disappear after loading my USB CD-ROM driver.

Posted on 2004-11-03
Last Modified: 2010-04-03
I'm upgrading windows based instruments from 98 to XP. We don't have an internal CD-ROM drive so I'm using a USB DVD (Sony DRX-710UL). We need to repartition to include a restore image and I'd like to just boot up a diskette copy over the restore image and then used a restore diskette to re-establish the C: partition. I can do this all with NET USE instead of the CD-ROM in the lab with no problem. I've created a boot diskette to load the USB CDROM device driver using,




device=himem.sys /testmem:off

When I boot the driver is loaded the drive found and assigned Q: it then returns to the command prompt but my USB keyboard (which is enabled in the BIOS) is now dead. How can I get around this?
Question by:stevestu
    LVL 69

    Accepted Solution

    You can try using a USB-to-PS2 adapter so that your keyboard will work.  DOS USB drivers are not good for supporting keyboards.
    LVL 15

    Expert Comment

    On windows XP you won't be needing all this configuration :

    MSCDEX.EXE /D:USBCD001 /L:Q, and so on ...

    Remove it form where it is, and reboot.

    Did it wok ?

    Best Regards !

    Author Comment

    This is the method for updating the instrument. The process looks something like,
    Create new partitions  C: & D:
    Format partitions
    copy over restore image (easyrestore) to D:
    restore C: partition from D: restore image

    The problem is that win98 is gone when I want to make the copy and the restore image is 1.6 Gbyte. I want to use a USB DVD to copy over. I can get DOS to recognize the device but lose my keyboard.
    LVL 15

    Expert Comment

    The simple answer is resources; All USB connections are using the same USB channel and it is most likely that you may create a momentary system halt...

    To overcome that problem; try to use a PS2 keyboard...

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