Footnote

0

Indicates that the drive letter preference for this volume is unique.

1

Indicates that the drive letter preference for this volume is not unique, but this volume got its preferred drive letter anyway.

2

Indicates that the drive letter preference for this volume is not unique, and this volume did not get its preferred drive letter.

4

Indicates that this volume is currently 'hidden' - i.e. it has no drive letter preference at the current time.