Failed to delete the snapshot Stable Baseline: X.Org ABI11 of the virtual machine Kanotix 64 Hellfire 2011-03 (Debian Wheezy-Sid) Kernel 3.0.0-1-amd64. Hard disk 'E:\AppData\Local\VirtualBox\Machines\Kanotix 64 Hellfire 2011-03 (Debian Wheezy-Sid) Kernel 3.0.0-1-amd64\Kanotix-64.vdi' has more than one child hard disk (2). Result Code: E_FAIL (0x80004005) Component: SessionMachine Interface: IMachine {5eaa9319-62fc-4b0a-843c-0cb1940f8a91}