Error 0xC00D0009

Value: -1072889847 | 0xC00D0009 | 3222077449

What does it mean ?

NS_E_CANNOTOFFLINEDISK  
Unable to offline disk.
Value: 9 | 0x0009 | 0b0000000000001001

Where does it come from ?

FACILITY_MEDIASERVER  
Windows Media Server
Value: 13 | 0x00D | 0b00001101

Other Errors for FACILITY_MEDIASERVER