Error 0xC0370008

Value: -1070137336 | 0xC0370008 | 3224829960

What does it mean ?

ERROR_VID_PARTITION_ALREADY_EXISTS  
Cannot create the partition for the virtualization infrastructure driver because another partition with the same name already exists.
Value: 8 | 0x0008 | 0b0000000000001000

Where does it come from ?

FACILITY_USERMODE_VIRTUALIZATION  
User mode virtualization subsystem
Value: 55 | 0x037 | 0b00110111

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Other Errors for FACILITY_USERMODE_VIRTUALIZATION