Sorry to bring this topic up again but I've read a lot about it here and tried a few suggestions and still can't get it to work. Be gentle because I'm pretty new to Virtualbox.
Running Version 6.1.4r136177(Qt5.6.2)
I have googled the message below and followed several suggestions but still, get the message. Any help would be appreciated.
I did go into Settings->Storage and changed the Controller: IDE to empty (per several suggestions) but that didn't help either.
Thanks, Joe
This is the message I get.
Unable to insert the virtual optical disk C:\Program Files\Oracle\VirtualBox\VBoxGuestAdditions.iso into the machine Ubuntu-Base.
Could not mount the media/drive 'C:\Program Files\Oracle\VirtualBox\VBoxGuestAdditions.iso' (VERR_PDM_MEDIA_LOCKED).
Result Code: E_FAIL (0x80004005)
Component: ConsoleWrap
Interface: IConsole {872da645-4a9b-1727-bee2-5585105b9eed}
Callee: IMachine {85632c68-b5bb-4316-a900-5eb28d3413df}