Windows 8 and 8.1 Forums

USB not working

  1. #31


    Posts : 44
    Windows 8.1


    Quote Originally Posted by Ztruker View Post
    Drive Cleanup is totally different than Driver Sweep. Please give Drive Cleanup a try.

    If it doesn't help, open a Elevated Command Prompt:

    Click on the Start button and type cmd.
    DO NOT press Enter or click Go.
    Look at the upper part of the window and you will see cmd.exe.
    Right click on it and select Run as Administrator.

    Next, type set devmgr_show_nonpresent_devices=1 and press Enter.
    Type devmgmt.msc and press Enter to open Device Manager.
    Click on View then Show hidden devices.

    Post a screen shot as you did before.
    No changes after the Driver Sweep, although it says USB devices/hubs not removed.

    But...
    Click image for larger version

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  2. #32


    Posts : 151
    Win8 Pro


    Expand the last entry (USB Controllers) and take a screenshot.
      My System SpecsSystem Spec

  3. #33


    Posts : 44
    Windows 8.1


    Quote Originally Posted by lastof View Post
    Expand the last entry (USB Controllers) and take a screenshot.
    Click image for larger version

    ( Why did we need to do this through command prompt and as admin? I just tried it the usual way Id open Device Manager, show hidden devices, and expanded the USB, exactly the same thing shows up. )
      My System SpecsSystem Spec

  4. #34


    If you see the same thing either way then you must have an defined environment variable called devmgr_show_nonpresent_devices with a value of 1.

    There is something drastically wrong though. All your USB devices show greyed out which means not installed or not available. It should look more like this:

    Click image for larger version

    When you ran Drive Cleanup (not Driver Sweep) it should have removed all the not available USB devices, though it's reporting USB devices/hubs not removed indicates again there is a problem with your USB.
      My System SpecsSystem Spec

  5. #35


    Posts : 151
    Win8 Pro


    Sorry for the delay. Take these steps to clean everything up. Windows will create a new device entry everytime you use a USB device and will quickly become overwhelmed whenever you remove them (ie., when they are not present). Windows searches for these devices everytime you boot and will drastically slow your boot times as well.

    First, go back to your command prompt and make sure you have the hidden devices command on, as Ztrucker explained, here are the steps from the beginning:

    1. Windows Key + X

    2. Choose Command Prompt (admin)

    3. Type (or copy and paste):


    SET DEVMGR_SHOW_NONPRESENT_DEVICES=1

    4. After you execute the above, type at the command prompt:

    DEVMGMT

    5. In Device Manager, make sure you check in the View menu that "Show Hidden Devices" is selected

    6. Make sure you have no USB devices/external hubs/ports/etc plugged in

    6. Expand your "Universal Serial Bus Controllers" menu, select every device with a greyed out icon and hit your "Delete" key on each one. Do not delete the driver software (leave the checkbox in the 2nd prompt unmarked).

    7. Restart windows and plug something into a USB port - if your hardware is ok, Windows will re-initialize the controllers and add the device.

    If this doesn't work, you probably have a hardware problem. Let us know.
      My System SpecsSystem Spec

  6. #36


    Posts : 44
    Windows 8.1


    Quote Originally Posted by lastof View Post
    Sorry for the delay. Take these steps to clean everything up. Windows will create a new device entry everytime you use a USB device and will quickly become overwhelmed whenever you remove them (ie., when they are not present). Windows searches for these devices everytime you boot and will drastically slow your boot times as well.

    First, go back to your command prompt and make sure you have the hidden devices command on, as Ztrucker explained, here are the steps from the beginning:

    1. Windows Key + X

    2. Choose Command Prompt (admin)

    3. Type (or copy and paste):


    SET DEVMGR_SHOW_NONPRESENT_DEVICES=1

    4. After you execute the above, type at the command prompt:

    DEVMGMT

    5. In Device Manager, make sure you check in the View menu that "Show Hidden Devices" is selected

    6. Make sure you have no USB devices/external hubs/ports/etc plugged in

    6. Expand your "Universal Serial Bus Controllers" menu, select every device with a greyed out icon and hit your "Delete" key on each one. Do not delete the driver software (leave the checkbox in the 2nd prompt unmarked).

    7. Restart windows and plug something into a USB port - if your hardware is ok, Windows will re-initialize the controllers and add the device.

    If this doesn't work, you probably have a hardware problem. Let us know.
    Its alright I didnt get this though:
    6. "...Do not delete the driver software (leave the checkbox in the 2nd prompt unmarked). " - is this one of the greyed out things in the USB Controllers? And where exactly is the checkbox located? :/
      My System SpecsSystem Spec

  7. #37


    Posts : 151
    Win8 Pro


    Quote Originally Posted by lunix View Post
    Quote Originally Posted by lastof View Post
    Sorry for the delay. Take these steps to clean everything up. Windows will create a new device entry everytime you use a USB device and will quickly become overwhelmed whenever you remove them (ie., when they are not present). Windows searches for these devices everytime you boot and will drastically slow your boot times as well.

    First, go back to your command prompt and make sure you have the hidden devices command on, as Ztrucker explained, here are the steps from the beginning:

    1. Windows Key + X

    2. Choose Command Prompt (admin)

    3. Type (or copy and paste):


    SET DEVMGR_SHOW_NONPRESENT_DEVICES=1

    4. After you execute the above, type at the command prompt:

    DEVMGMT

    5. In Device Manager, make sure you check in the View menu that "Show Hidden Devices" is selected

    6. Make sure you have no USB devices/external hubs/ports/etc plugged in

    6. Expand your "Universal Serial Bus Controllers" menu, select every device with a greyed out icon and hit your "Delete" key on each one. Do not delete the driver software (leave the checkbox in the 2nd prompt unmarked).

    7. Restart windows and plug something into a USB port - if your hardware is ok, Windows will re-initialize the controllers and add the device.

    If this doesn't work, you probably have a hardware problem. Let us know.
    Its alright I didnt get this though:
    6. "...Do not delete the driver software (leave the checkbox in the 2nd prompt unmarked). " - is this one of the greyed out things in the USB Controllers? And where exactly is the checkbox located? :/
    Select a greyed out device and hit DEL, after you hit the DEL key, Windows will first prompt you on whether you are sure or not, after you hit OK, you should get a second prompt that asks if you want to keep the device drivers or not, just make sure not to delete the device drivers...

    ...the last time I did this was on Windows 7, and I'm assuming it is the same for Win 8, but if I'm wrong, then just hit OK for the first prompt asking if you are sure you want to delete, then move on to the next device to delete. Remember, you have to delete them individually, not as a group, and in your case, where everything is greyed out, you will be deleting all of them one by one.
      My System SpecsSystem Spec

  8. #38


    Posts : 44
    Windows 8.1


    Quote Originally Posted by lastof View Post
    Quote Originally Posted by lunix View Post
    Quote Originally Posted by lastof View Post
    Sorry for the delay. Take these steps to clean everything up. Windows will create a new device entry everytime you use a USB device and will quickly become overwhelmed whenever you remove them (ie., when they are not present). Windows searches for these devices everytime you boot and will drastically slow your boot times as well.

    First, go back to your command prompt and make sure you have the hidden devices command on, as Ztrucker explained, here are the steps from the beginning:

    1. Windows Key + X

    2. Choose Command Prompt (admin)

    3. Type (or copy and paste):


    SET DEVMGR_SHOW_NONPRESENT_DEVICES=1

    4. After you execute the above, type at the command prompt:

    DEVMGMT

    5. In Device Manager, make sure you check in the View menu that "Show Hidden Devices" is selected

    6. Make sure you have no USB devices/external hubs/ports/etc plugged in

    6. Expand your "Universal Serial Bus Controllers" menu, select every device with a greyed out icon and hit your "Delete" key on each one. Do not delete the driver software (leave the checkbox in the 2nd prompt unmarked).

    7. Restart windows and plug something into a USB port - if your hardware is ok, Windows will re-initialize the controllers and add the device.

    If this doesn't work, you probably have a hardware problem. Let us know.
    Its alright I didnt get this though:
    6. "...Do not delete the driver software (leave the checkbox in the 2nd prompt unmarked). " - is this one of the greyed out things in the USB Controllers? And where exactly is the checkbox located? :/
    Select a greyed out device and hit DEL, after you hit the DEL key, Windows will first prompt you on whether you are sure or not, after you hit OK, you should get a second prompt that asks if you want to keep the device drivers or not, just make sure not to delete the device drivers...

    ...the last time I did this was on Windows 7, and I'm assuming it is the same for Win 8, but if I'm wrong, then just hit OK for the first prompt asking if you are sure you want to delete, then move on to the next device to delete. Remember, you have to delete them individually, not as a group, and in your case, where everything is greyed out, you will be deleting all of them one by one.
    Late reply, sorry.

    I started deleting them, after deleting the first 9 (last one I deleted was Intel USB ... 293A), the Universal Series Bus controller section doesnt show up anymore, even when "Show hidden devices" is ticked. Also tried redoing all the steps again multiple times, still nothing.
    This is getting really weird.
      My System SpecsSystem Spec

  9. #39

    I have the same problem!


    Hey everyone! I found this thread looking for a solution for the exact same issue on my laptop. (I only bought the laptop last year too!)

    I followed all the steps mentioned in the thread except for the BIOS suggestion. Everything happened the same way that happened to Lunix, and now I'm stuck at the last place was posted- having the usb hub show up, and then disappear again.

    I really need my usb ports! I'm a uni student!
    !

    Lunix, did you ever find a solution?
      My System SpecsSystem Spec

  10. #40


    Posts : 44
    Windows 8.1


    Quote Originally Posted by IrregularHonour View Post
    Hey everyone! I found this thread looking for a solution for the exact same issue on my laptop. (I only bought the laptop last year too!)

    I followed all the steps mentioned in the thread except for the BIOS suggestion. Everything happened the same way that happened to Lunix, and now I'm stuck at the last place was posted- having the usb hub show up, and then disappear again.

    I really need my usb ports! I'm a uni student!
    !

    Lunix, did you ever find a solution?
    Hi!
    No, I never did, everyone left this thread a while ago, my USB still isn't working.
    Last edited by lunix; 12 Sep 2015 at 05:28.
      My System SpecsSystem Spec

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