"Usb device not recognized"

The Solution
Here is the solution that worked for me...
1) Remove all oem*.inf files 1. Click start and click run then under the run line type in the command "cmd" (without the quotation marks)
2. In the command line, type in the following (without the quotes) and press enter after each command:
"cd \windows\inf"
"ren infcache.1 *.old"
"ren oem*.inf *.old"
"del C:\windows\setupapi.log"
2) Removing all entries under HKEY_LOCAL_MACHINE/Enum/USB that start with "VID"
Removing the VID entries from the registry will cause them to be redetected at restart. CAUTION: If you have a USB keyboard or mouse, do not remove the VID entry for these devices, otherwise, Windows may not restart correctly. 1. Click Start and click Run. Type regedit and click OK. The Registry Editor window will open. 2. Go to HKEY_LOCAL_MACHINE\System\CurrentControlSet\Enum\USB. 3. Highlight and delete all the VID_…. entries. Permissions may be set allowing the deletion of the VID_ entries by following the steps below: a)Right-click the key to be deleted, and then click Permissions. The VID_… Permissions window will open. b)With Everyone highlighted in the Group or User name section, select Full Control in the Permissions section. c)Click Apply, and then click OK. 4. Turn off the computer.
3) Reconnect the USB device to the computer system: 1. With the computer system turned off, reconnect the USB hub to the the USB port.
2. Restart the computer.
3. A New Hardware Detected window should open and reload the drivers.


Note: Applicable for window vista/windows xp/