My PC will not recognise any of my usb connected equipment. External drives x 2, pda hotsynch (Palm, camera download, skype camera etc.This has happened suddenly.

click start control panel administration tools computer management device manager look through all of your devices if you see a yellow question mark?or exclamation mark ! or red x
right click to reinstall drivers or

if you can see your usb but its not working
ports(com&lpt)right click update driver

sometimes the wires inside the cable will be damaged due to bending or stretching or placing heavy equipment upon the cable

just replace the cable of the hard disk, when you plugged the external disk drive you got that windows could recognize the USB device change the cable everything should work fine again,

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

if this fails to fix the problem
you might have to install a usb 2 or 3 card they are cheap and easy to install you can buy these on Ebay very cheap
hope this helps

Hello Sr,

Kindly read this, it may help you.

When the software that lets your computer communicate with your PDA acts up, always check the cables and connections first. Is the USB (Universal Serial Bus) or serial cable connected securely to the PDA (or cradle) and the PC? Is the PDA seated properly in its cradle if it uses one? If everything is in place, visit the palmOne (www.palmone.com/us/support/downloads) or Windows Mobile (www.microsoft.com/windowsmobile) Web site and download the latest version of the HotSync or ActiveSync software that is compatible with your PDA and your computer's OS. Keeping synchronization software up-to-date is important because newer versions fix compatibility problems and usually add new features.

If you have a Palm OS PDA that uses a USB connection, sometimes incompatibilities exist between Windows and the software that you can resolve only by running a special USB utility found at the PalmOne download site mentioned previously. Select your hardware from the drop-down list and click the USB Registry Utility link. Download the USBRegClean.exe file, navigate to the downloaded file, and double-click the icon to install it. Reboot your computer and reinstall the Palm Desktop and HotSync Manager.
...contd

Unplug all External USB Drives and restart your Laptop once.

Now try to connect the USB Drive it should be working.

Please post your feedback and Vote if the problem resolved as per your satisfaction>

HI,
I had the same problem with my palm. The first thing I did was to make sure I had the most up to date software on my computer. YOu can get this by going to www.palm.com and cklicking on PDA's and then the name of your palm. From there it will bring up a page that has all the up to date desktop software. If you have the up to date desktop software and you have all your information backed up on your computer then preform a hard reset. This will ERASE everything on your palm. If you need directions on how to do this send me a comment and I will get those directions. If you ahve the manual it should tell in there how to do a HARD reset. The hard reset will restore it back to all the default settings and erase it just as if it were new,. After you get to this point do another Hot Sync. It hould sync for you just fine. Hope this works for you. I had great results doing this.
Best wishes.

make sure the usb function of mb is enable in biose [email protected]

Try connecting it to a higher speed usb port if you have one. You can also purchase higher speed hub connection.

Ouch. It needs a new screen-digitizer combo.

dont bother to connect camera to pc..just use the SD card reader...either external usb one or laptops internal one

You must use special software to recognize Ipod, each time - Ittunes.

I may be wrong but each PDA (assuming you are connecting different brands) have different drivers. I connected a Toshiba and Dell PDA and each required their respective install disk with their respective drivers. Then I configured each pda using the Active Sync Connection Wizard. Everything ran smoothly after that.