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  1. #1
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    missing hardware and ports: how to get them back?

    Lost cdroms and usb ports after a failed device driver install for a new disk.
    autodetect does not seem to find them anymore.
    looks like they were deleted from msconfig hardware.

    is there any way to ADD hardware into the pcs knowledge tables so it might try to find them and install a driver (if that is missing too) ?

    is this something that i could edit into the registry. or where does msconfig find the devices??
    i have a very big registry book to guide me so not afraid to do those changes.
    hopefully i could copy the needed entries from a similar pc if that is the answer.

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  3. #2
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    First thing to try is a restore point to when they were working but the following two links may help.

    http://windows.microsoft.com/en-US/w...th-USB-devices

    https://support.microsoft.com/kb/314060

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  5. #3
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    tried and failed

    i have two pcs
    almost identical but not quite

    if i knew what might have been deleted to cause the problems
    i could copy it over from the working one

    so far my eyeball comparisons have not found the right stuff to look at

    what could be deleted that makes a device disappear from the configuration
    so you cant click on it and install a new driver or find out other info about it

    the device is just missing
    so WHERE DOES windows keep thta list of devices it shows in the config accessed by device manager ??
    if i could force its existence by editing the registry i could fix the rest of the problems

  6. #4
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    The list of devices would be listed in Components of msinfo32 which can be accessed by typing that at Start - Run -.

    If they are listed then they will have a PCI/VEN&DEV number for their driver which can be used to ID and perhaps Google for a driver download.

    Going to your computer or motherboard support site and downloading the chipset first and drivers for any missing devices where listed, but they don't normally give one for the CD/DVD player.

    The chipset may auto reinstate that.

    Normally devices would be reinstated after a reboot, but you could try Device Manager/Action/Scan for hardware changes to see if it reinstates the missing DVD drive and USB ports.

    Have you retried the failed update to see if successful which then may square things up.
    Last edited by Sudo15; 2014-02-27 at 18:17.

  7. #5
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    Couldn't find this MS Fixit before, but give it a try to see if it will reinstate the missing devices if you haven't managed to sort it with the previous suggestions.

    http://windows.microsoft.com/en-gb/w...lems=windows-7

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  9. #6
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    Quote Originally Posted by speedball View Post
    Lost cdroms and usb ports after a failed device driver install for a new disk.
    autodetect does not seem to find them anymore.
    looks like they were deleted from msconfig hardware.
    Have you tried running msconfig and restoring them there?

  10. #7
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    the cdroms have disappeared
    nothing finds them so i can add a driver

    scan finds some things but not all
    then wants a DRIVER disk
    all i can find are installers not a driver

    all that is left for i/o is one floppy disk
    which complicates things



    Quote Originally Posted by Sudo15 View Post
    The list of devices would be listed in Components of msinfo32 which can be accessed by typing that at Start - Run -.

    If they are listed then they will have a PCI/VEN&DEV number for their driver which can be used to ID and perhaps Google for a driver download.

    Going to your computer or motherboard support site and downloading the chipset first and drivers for any missing devices where listed, but they don't normally give one for the CD/DVD player.

    The chipset may auto reinstate that.

    Normally devices would be reinstated after a reboot, but you could try Device Manager/Action/Scan for hardware changes to see if it reinstates the missing DVD drive and USB ports.

    Have you retried the failed update to see if successful which then may square things up.

  11. #8
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    Quote Originally Posted by mrjimphelps View Post
    Have you tried running msconfig and restoring them there?
    yes

    they are GONE

    msconfig does not know they exist

    i have to tell msconfig to put them on the list with the other stuff
    then i can install a driver
    maybe set a drive letter to the old value it had been
    adn it hopefully would work again

  12. #9
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    Have you tried plugging in an USB device then going into Device Manager/USB controllers and uninstall the USB Host controllers.

    With the USB device plugged in, this should initiate an auto reinstate and the drivers for the USB device.

    In Device Manager/View/Show hidden devices/Non-Plug and Play Drivers, are there any yellow alerts ?

    I'm not sure if these MS steps will reinstate the DVD/CD-ROM but you could give them a try https://support.microsoft.com/kb/314060 but when a fault occurs following an install/event, then using a restore point prior to that install/event would usually resolve and if the restore fails in normal mode, then try the restore point in Safe Mode.

    When you go Start - Computer - right click on Windows (C) - select Properties and under the Hardware tab is the DVD/CD-ROM drive listed ?
    Last edited by Sudo15; 2014-03-07 at 03:26.

  13. #10
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    i have tried many things
    plug and play does not work
    nothing is recognised
    all the usb are gone
    the cdroms are gone

    until i can convince msconfig that the cdroms are still there and work just fine then i wont be able to do anything


    Quote Originally Posted by Sudo15 View Post
    Have you tried plugging in an USB device then going into Device Manager/USB controllers and uninstall the USB Host controllers.

    With the USB device plugged in, this should initiate an auto reinstate and the drivers for the USB device.

    In Device Manager/View/Show hidden devices/Non-Plug and Play Drivers, are there any yellow alerts ?

    I'm not sure if these MS steps will reinstate the DVD/CD-ROM but you could give them a try https://support.microsoft.com/kb/314060 but when a fault occurs following an install/event, then using a restore point prior to that install/event would usually resolve and if the restore fails in normal mode, then try the restore point in Safe Mode.

    When you go Start - Computer - right click on Windows (C) - select Properties and under the Hardware tab is the DVD/CD-ROM drive listed ?

  14. #11
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    Quote Originally Posted by speedball View Post
    i have tried many things
    Why not answer the questions if you want help?

    (Especially as you now have three different threads discussing the same problem.)
    Last edited by BruceR; 2014-03-13 at 10:46.

  15. #12
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    what question do you want answered



    Quote Originally Posted by BruceR View Post
    Why not answer the questions if you want help?

    (Especially as you now have three different threads discussing the same problem.)

  16. #13
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    Quote Originally Posted by speedball View Post
    what question do you want answered
    I suggest the three questions you quoted but did not respond to in post 10.

  17. #14
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    If this is an OEM build machine then go to the vendor support site and download the Chipset (if one listed) then any other relevant drivers and if it's a home build, then go to the motherboard support site and do the same.

    The Chipset should help the motherboard find the missing devices.

    A couple of other things to check if the drivers don't do it and that is go Start - type services.msc - Enter and check that the Human Interface service is set to Manual and showing as Started and that the Plug and Play service is set to Automatic and also showing as Started.

    There may also be something related in Event Viewer.
    Last edited by Sudo15; 2014-03-20 at 19:28.

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  19. #15
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    yes

    it didnt

    no yellow alerts



    Quote Originally Posted by BruceR View Post
    I suggest the three questions you quoted but did not respond to in post 10.

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