USB Ports Not Working

W 7
First, please disconnect all USB devices and then perform the following steps:
Click "Start" button, type "devmgmt.msc" (without quotation marks) in the "Search" bar and press "Enter". Click "Continue" if necessary.
In Device Manager, double click to expand "Universal Serial Bus controllers", right click on the Host Controller, click "Uninstall" and click "OK".
Repeat the step 2 to uninstall all items under "Universal Serial Bus controllers".

Then, restart your computer and Windows 7 will reinstall all USB controllers automatically.
for XP or earlier
Click start right click on computer select properties device manager scroll down universal serial bus controllers you could see a yellow question / exclamation mark? ! or a red X
you will need to update/reinstall drivers right click to reinstall drivers
if you can see your usb drive but its not working
ports (com&lpt) right click update driver if this fails to fix the problem
Check the USB leads that attach to the motherboard usually red white green black make sure they are securely seated and have no dust build up on them dust will cause static and a lot of unforeseen problems to a computer and its parts Check if USB Ports Are Damaged

USB ports are an important part of your computer's hardware.
Many devices connect to the computer via USB, such as music players, cell phones and digital cameras.
This connection lets you charge your devices and manage files on them.
When you connect a device to a USB port, it is typically recognized automatically.
If not, there may be a problem with the port. USB ports sometimes fail on their own, or they may be damaged by force.

Plug a variety of devices into the USB port you think is damaged.
If none of them work, the port is probably broken.
Connect the same devices to the USB ports on a different computer.
If they work, this is another indication your ports may be damaged.
Run Windows Update on your computer to ensure your devices and computer function together and have the latest drivers.
Click "Start," then type "Update" in the search bar.
Click on "Windows Update," "Check for Updates" and "Install Updates."

Open the Windows Device Manager by clicking "Start," then typing "device manager" into the search bar.
Click the Device Manager link when it appears.
Click on each of your USB ports.
In the Properties window, look for "This device is working properly."
If this is displayed for each USB port, they are not damaged, but there may be a problem with your device instead.
Click "Update Driver" next to each USB port in the Device Manager, and Windows searches for and installs the latest driver.
If one can't be found, go to your computer manufacturer's website, and download the driver there. Try to use the USB port again.
Sometimes, outdated or damaged drivers result in a non-working USB port.

Open your computer case by unscrewing or sliding off the side cover.
Use a can of compressed air to clean out the dust from inside, especially from within the USB ports.
If your USB ports are hooked up to the motherboard, remove the cable, then replace it.
These actions sometimes help to fix non-working ports.


http://askbobrankin.com/usb_ports_not_working.html

Hi thedrogue429. it would be hard to tell if it's a hardware or a software problem because you hear something when you connect. You will have to try with other USB devices to see. In case you DID try with other devices and none of them worked. Get a PCI usb card. They cost prob $10 and you can install it yourself. It's really easy. In case that doesnt work you will need to reinstall Windows but anyways you will have more USB ports. I hope this helps and dont forget to rate and give positive feedback for our free support today. Thank you :D

1/ first look on bios usb is disable or not? some types hardwere need softwere so we get this type message.3/look device manager usb port is instal or not? install with operating softwere.

click the start menu, click settings, go to control pannel, click the system icon, go to the hardware pannel, then the device manager, right click the universal serial bus controller and click on the option 'scan for hardware changes'.
if still the usb does not appear, plug in the port, another working usb. If it works, there is a problem with your usb and if it dosen't work, there is a problem with the usb ports...

If none of your USB ports work, there could be a problem with your USB controllers. Uninstall the USB controllers via Control Panel - System ... and reboot your laptop. They will reinstall upon bootup. Good luck.

does your usb mem stick have any light indicators? if yes , whenever you put you usb stick, does it light? if it lights are USB ports is still ok,  You just have to reformat or partition you USB stick.
(you can also try other devices like usb mouse or any usb devices that lights up when you connect it)

if there are no lights if you plug, or no indication that a power goes to your stick, its possible that your usb your are busted. if this is the case, if your laptop has a PCMIA slot, you can find a pcmia USB card, if you dont have. your only option is replace the  motherboard.

replace your USB cord maybe it is not working..

Check Device Manager for bad drivers

Check your CMOS settings to ensure that your USB ports are enabled. 

Check ports are operating correctly, go to Control panel>performance & maintanace>admin tools>services. Look dow list for 'plug and play', make sure this is set at automatic, the furthur down list 'Universal plug & Play' and ensure this is set at Manual. if all is ok then it may be a usb power issue if you ave lots of hungry usb peripherals, try disconnecting some and try your problem periheral in a different usb port.