Error 0x80270260

Value: -2144927136 | 0x80270260 | 2150040160

What does it mean ?

E_SKYDRIVE_ROOT_TARGET_FILE_SYSTEM_NOT_SUPPORTED  
Please choose a folder on a drive that's formatted with the NTFS file system.
Value: 608 | 0x0260 | 0b0000001001100000

Where does it come from ?

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

Other Errors for FACILITY_SHELL