Error 0x8032000A

Value: -2144206838 | 0x8032000A | 2150760458

What does it mean ?

FWP_E_IN_USE  
The object is referenced by other objects so cannot be deleted.
Value: 10 | 0x000A | 0b0000000000001010

Where does it come from ?

FACILITY_FWP  
Firewall Platform
Value: 50 | 0x032 | 0b00110010

Other Errors for FACILITY_FWP