Usb Devices not detected?

Question

I Have P4 Machine with windows xp sp2 installed i cant detect any of the usb devices how to solve this problem?
When i connect ipod i am able to charge the ipod but windows xp does not detect the ipod .Even when i connect external hdd with enxernal power supply it shows unknow device but unable to detect the harddisk
the pen drive is also not detected i tried connecting on 4 motherboard usb ports and 2 front usb ports . i even tried formatting my machine but it didnt solve the problem
there are no exclaimation marks in the device manager too.. it shows all usb devices working fine in the bios also usb are enabled . what might be the problem how can all the usb ports not work ?when i uninstall the usb from the device manager and restart the machine it detects all the usb ports
Anyone any idea any other alternatives

Answer 1

1. Disconnect all usb devices
2. Go to Control Panel > System. Choose the "Hardware Tab" and click on the "Device Manager".
3. Expand the section for "Universal Serial Bus Controllers".
4. Right-click on each entry in this section and select "uninstall".
5. Reboot the computer.
6. Windows *should* try and reinstall the USB drivers after booting.
7. Connect usb devices and see if windows recognizes them now.

Answer 2

Try checking for Ghosted Devices. XP does not handle USB devices that well. Try following this Microsoft article might help.

PS : Do this after u uninstall the device from the devicemanager.
Pls follow the instructions here :

http://support.microsoft.com/kb/315539/en-us

Feel free to send me an email.

- Intelligence is a privilege, which should be used for the good of mankind.
Dr. Octopus, Spiderman 2

Answer 3

could be the drivers
if the machine is using usb 2.0 ports makesure you have the proper drivers installed. if you installed a new mother board check the disk that came with it for the usb drivers...windows may not have them
also makesure you have the latest microcrap updates installed...

as for the ipod... if you formatted it on a mac first then the pc won't be able to detect it... ipods work from pc to mac not mac to pc...

good luck

Answer 4

You have to download iTunes and your iPod hook-up software before your computer will actually detect that an iPod is connected. If you have, then just try restarting iTunes and doing anything possible to see if it will connect. If you are on iTunes, then go up in the menu and fine preferences. Under preferences click iPod and see if it says it's connected. Sometimes it just takes a long while.

Answer 5

Check carefully inside your computer if is a desktop, check the usb cable that is connected in your motherboard. Or Restore your computer to the time that the usb works. Good luck

Answer 6

go to the vendor who made ur machine and download ur USB"s from there...has a download there that is just for ur machine ...while u are there u can find other downloads just for ur machine take advantage of the upgrades they offer

Answer 7

Cough Cough.... Get a Mac... Cough