Error 0x80270020

Value: -2144927712 | 0x80270020 | 2150039584

What does it mean ?

COPYENGINE_E_ROOT_DIR_DEST  
Destination is a root directory, cannot be renamed
Value: 32 | 0x0020 | 0b0000000000100000

Where does it come from ?

FACILITY_SHELL  
User Shell
Value: 39 | 0x027 | 0b00100111

Other Errors for FACILITY_SHELL