My usb port is nt working ...it is not detecting any device (keyboard or mouse and etc).when i look for the problem in the device manager it is showing that driver for the usb hub is missing ,,plzz help me as soon as possible
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Re: usb not working
Hello check that the USB Port is connected correctly plugged into the motherboard For your OS first install the latest Service packs available Re-install the USB2.0 Drivers Connect the KB and mouse to the corresponding USB's Restart the system.
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Is it not working at all or is it moving erratically across the screen? If it doesn't seem to be working at all, turn off your mouse then unplug the receiver's USB cable from the laptop for about 5-10 seconds then plug it in to another USB port. It may detect a new device, just let it do the automatic installation if it asks. You should here a 'tada' or ding sound when it is plugged in. When installation is completed or about 10 seconds after you hear the sound, turn your mouse back on.
If it still doesn't work, try shutting down your laptop completely instead of just rebooting it.
If it still doesn't work after that, make sure you have a spare USB mouse available then uninstall the software for your wireless mouse or mouse/keyboard combo then reinstall it.
Go to my computer proeprty then hardware then device manager.
Then uninstall all usb driver then restart your computer then check.
then if your usb mouse not works then check your usb ports works fine also try your mouse in another computer if it not works then you need to repair your mouse.
Resetting your USB Controllers
I'm going to assume that you're running XP (home or pro). Recently I had to refresh my USB ports. This is the sequence I used.
1. Right-click My Computer and select Properties
2. Click Hardware
3. Click Device Manager
4. Expand the Universal Serial Bus Controller
5. Right-click each USB device listed and select Uninstall
6. Click OK to confirm removal of each device
Note: Repeat steps 5 and 6 until all devices under UBS Controller are removed
7. Shut down computer.
CAUTION: Ensure that the Shut Down option is selected instead of Restart.
8. Wait a few seconds and turn computer on. When it reboots you will see "Windows has detected new or added hardware"
Note: You will have to insert your Windows CD, if prompted.
These steps will refresh the USB ports.
Added Notes: 1) If your mouse is a USB you will have to use the
keyboard to shut down your computer. 2) It would be wise to unplug
everything from your USB ports EXCEPT your mouse and/or keyboard before
you restart the computer to avoid Windows replicating any printers,
scanners, digi-cams, etc. Once Windows has refreshed your USB
controllers and ports, shut down again. reconnect, and restart.
I have the same problem with the USB's not working. Suppliers say Motherboard problem. solved it by purchasing a PCMCIA to USB port. at least i now have 2 USB ports. you could probably get one with 3 ports.
1. goto desktop, right click on my computer and press manage.
2. goto the device manager, find the usb devices / ports.
3. Make sure you are useing a ps2 mouse / keyboard since if your mouse/keyboard is connected to usb they will stop working untill your pc is restarted and the devices are reinstalled.
4. Uninstall all usb devices.
5. after all usb devices are uninstalled reboot the pc.
If the problem is with your drivers ( your pc detects the mp3 player but no drivers found) Download the newest drivers for your product and operateing system from the vendors website.