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What to do if your USB "Whatever" stops working, or, isn't recognised.

We have all had it happen, It worked yesterday, type of thing... USB, the ubiquidious USB 2... Often the USB mucks up and, things won't work, devices will not be "Recognised" and Nothing ya do fixes anything you are convinced that your device is wrecked, and the whole world hates you. Fear not there is a "Fix".
Ya see, often, all that happens, is the registry settings get screwed up. Even when you re-install that still doesn't fix anything. Thats because the "Settings" often remain, often multiple copies, this, just get XP confused.
Now Microsoft have had this happen too... they have indeed shown us what to do to try and fix it all, here is the link.
Basically, ya rip out all the USB layer registry settings totally. Then ya reinstall the entire USB layer all over again.
This removes any corrupt entries and "Zeros" it so to speak, back to the, from-the-factory-default-settings. All new and shinny.
Ready to have your devices that didn't work suddenly spring into life just as it was before.
Now make sure you have any/all Drivers and Software, to reinstall, as it will be like installing the USB device for the first time..
Ok now, if all this doesn't work.. then unfortunately there is a good chance ya USB "Thingy" is beyond recovery. Oh well can't win them all.

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I have a Kingston Data Traveler 2GB USB Flash Drive which I bought 2weeks ago. Whenever I plug it in one of my usb ports, i get a message which says "USB Device Not Recognized. One of the USB Devices attached to this computer has malfunctioned, and Windows does not recognize it." I tried plugging in the device in other computers but still i get the same message. The OS of the computers I've tried are all Windows XP.

We have all had it, yesterday it was fine now it says it doesn't recognise ya USB device.. AARrrgg. Well there are various way to try to fix. Now providing your USB aint Kaput then this works like 99 outa a hundered.Simply Remove and reinstall all USB controllersTo remove and reinstall all USB controllers, follow these steps:
  1. Click Start, click Run, type sysdm.cpl in the Open box, and then click OK.
  2. Click the Hardware tab.
  3. Click the Device Manager button.
  4. Expand Universal Serial Bus controllers.
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  6. Restart the computer, and "Windows" will then automatically reinstall the USB controllers.
  7. Plug in the removable USB storage device, and then test to make sure that the issue is resolved.
Remember with USB devices. FIRST, install software/drivers, then insert USB device SECOND.

Feb 14, 2010 | Kingston (DTIU3/2GB) 2 GB USB Hard Drive

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absolutely no idea but mine does the same thing....works ok on my sisters non dell computer.......

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When I had that problem on my Zen I un-installed all the software and rebooted my system and reloaded the software. Not sure why it worked but it did.

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