VirtualBox — Cannot Register The Hardisk because a Hard Disk with UUID {XXX} Already Exists

0. CLOSE ALL VIRTUAL BOX SESSION
1. Run Command Prompt (cmd.exe) ( ADMIN PRIVILEGES )
2. go to C:\Program Files\Oracle\VirtualBox ( DEFAULT PATH )
3. Type VBOXMANAGE.EXE internalcommands sethduuid [ disk.vhd ]

2013-07-18_231111

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