This will allow you to quickly unplug any portable drive in Windows. This works by disabling write caching on the drive, and is useful if you live in a part of the world prone to unannounced powercuts.
In Explorer, Right Click on the Drive (Eg: WD My Book):
Click on Properties:
Click on the button labelled Properties:
Click on “Change Settings”:
Click on Policies, and choose “Quick removal”: