What do these hard drive icons mean?

Here are the different icon adornments for hard drives that may appear in My Computer This PC.

Adornment		Meaning
	Windows logo (may be combined with other adornments)	System drive.
	Locked padlock	BitLocker locked: Volume is inaccessible.
	Unlocked padlock	BitLocker on: Drive is encrypted and keys are protected.
	Unlocked padlock with yellow warning triangle	BitLocker is suspended: Drive is encrypted but everyone has access. This icon is also used to indicate the BitLocker is pre-provisioned.

(Sorry for the broken images earlier. The blog system corrupts the data URIs on upload, and I have to remember to manually fix them.)