Saturday, April 19, 2014

Cannot register the hard disk xxxxx because a hard disk xxxxxx with UUID xxxxxxx already exists in Oracle VirtualBox

Failed to open the hard disk .

Cannot register the hard disk because a hard disk with UUID already exists.


  • Open the Command Prompt
  • Change the directory to where VirtualBox is installed (Default: C:\Program Files\Oracle\VirtualBox)
  • Type the following VBOXMANAGE.EXE internalcommands sethduuid [PathOfNewVHD]

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