OK What version of Windows are you using? I can give you step by step for re-installing your USB drivers on your machine for XP. I have actually copied this below from my web site. I had Vista taken off my machine so someone with Vista would have to check if the same steps would work with Vista.
To do this Unplug all your USB devices with the exception of your keyboard and mouse if you use one. Go to Control Panel and then open the System applet. Pres control tab until you hear hardware. Press tab until you hear Device Manager. Press space to open this. Press tab once to go into a tree view of devices. You need to cursor down until you hear Universal Serial Bus controllers. Press the right cursor key to open this view. You now need to find the core USB driver for your PC. This may be named after your processor. On my PC this driver is called Intel(R) 82801G (ICH7 Family) USB Universal Host Highlight this line and press the delete key. Confirm that you want to delete the driver. Windows will immediately start to re-install it. After a few seconds Windows will recognise your keyboard and mouse. Exit device manager and restart your windows. After windows have completely reloaded start to plug in your USB devices one by one. As you would have cleared the windows database of devices there is a chance that any problems will now disappear as windows re-constructs it USB device database. If this does not work and your hardware is not faulty then I am afraid a system restore or windows re-install is indicated. Regards David Griffith My Low Vision Resources Web Site is http://www.nonags.org/members/dajgriff/ -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Nancy Shackelford Sent: Thursday, 07 May 2009 05:39 To: [email protected] Subject: Re: [Blind-Computing] Computer suddenly doesn't recognize USBportordevice So far, no known power or hardware issue. Works on another computer, and I need to find a USB device to plug in to this one to try that option. Hard drive has its own power supply, so don't need to power it from the computer. Thanks, Nance Nancy Shackelford --WALK ON FAITH AND TRUST IN LOVE! - Michael Reed-- ----- Original Message ----- From: "David Griffith" <[email protected]> To: <[email protected]> Sent: Wednesday, May 06, 2009 8:24 AM Subject: Re: [Blind-Computing] Computer suddenly doesn't recognize USB portordevice > We need a little more information. > Does the external drive have a power supply? > Is there any sign that you can tell that power is going through to the > unit? > Are you able to see the power light come on? If not is there any activity > that you can feel if the unit is powered on? > If there is a power supply is this emitting heat or cold? > > If the drive is powered from the USB Port is there an optional connection > to > increase power to the drive? > Have you installed any other devices since yesterday? > Have you tried plugging the drive into another USB Port? > Have you tried plugging another device into this Port to check it works - > a > USB Pen drive for example. > Do you have access to a friend's computer to check to see if the drive > works > on another machine? > > If it is not a hardware or power issue There are steps for you to take to > re-install your USB drivers which I can post. However this will obviously > not work if there is a power or hardware failure issue so information on > this is the best initial step. > > Regards > > David Griffith > My Low Vision Resources Web Site is > http://www.nonags.org/members/dajgriff/ > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Nancy > Shackelford > Sent: Wednesday, 06 May 2009 13:04 > To: [email protected] > Subject: [Blind-Computing] Computer suddenly doesn't recognize USB port > ordevice > > I have an external hard drive with music on it. I accessed it yesterday > from > > this computer, but no matter what I do, it will not recognize it today. > How > do I get the computer to recognize it? It's a USB device. > > TIA, > Nance > > Nancy Shackelford > Walk On Faith & Trust In Love - Michael Reed > > > For answers to frequently asked questions about this list visit: > http://www.jaws-users.com/help/ > > > For answers to frequently asked questions about this list visit: > http://www.jaws-users.com/help/ For answers to frequently asked questions about this list visit: http://www.jaws-users.com/help/ For answers to frequently asked questions about this list visit: http://www.jaws-users.com/help/
