My pen drive not recognized

When I plug in my USB drive I hear the audible "ding" sound but nothing happens after that. I don't see that the drive is being recognized at all. If I leave the thumb drive plugged in and reboot, Vista will then recognize it. How can I get the system to recognize the thumb drive without rebooting the system?

1. Navigate to Device Manager using the above instructions
2. Right click and Delete all of your USB controllers
3. Reboot Vista

Vista will recognize that you have deleted the USB controllers and add the new hardware back to your system. This may fix anything that had been corrupt.

Hi, I think your pendrive may be damaged by water or by dropping.

Hi, do one thing if u have two ports , insert your pendrive in second one and see weather its detecting your pendrive or not.