USB device not showing up in windows explorer

If your USB device is not showing up in windows explorer when connected to your system. Do the following.
- Go to Start - Control panel - Hardware - Device Manager
- Identify the device instance id by going to properties of the corresponding device.
- Go to registry HKLM - System - Enum - USB - and the corresponding device instance id.
- Change the registry value for PortableDeviceNameSpaceExcludeFromShell to "0" (value Zero)
- Connect the USB and the device should be detected now.