The normal way to terminate Windows Explorer’s processes is to go to Task Manager, look for Explorer.exe under Processes tab, then right clicking on it and select End Process, or using Taskkill command. This actually involves few steps in killing only a single Explorer.exe. If you have multiple Explorer processes running at the same time, then you need to repeat above steps to kill each of them. Now Windows Vista offers you an easy and faster way to kill all of running explorer processes with only few simple clicks.

To kill explorer processes in faster way, follow below steps:

1. Click Start button.

2. Hold CTRL + SHIFT then right click on any area within the red circle as shown below.
exitexplorerarea

3. Exit Explorer will appear in the pop up menu, click on it to terminate all running explorer processes.
exitexplorer

The trick works slightly different in Windows XP. Check out the simple exit explorer trick.