virtualbox.org

I need your appreciable support to resolve the next issue:

Unable to insert the virtual optical disk D:\VirtualBoxSystem\VBoxGuestAdditions_6.1.30.iso into the machine Ubuntu20.

Could not mount the media/drive 'D:\VirtualBoxSystem\VBoxGuestAdditions_6.1.30.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}

In general, the option for activating the GuessAdditions fails with all my VMs and diverse OS.

My device is one MSI model is GL62 with SO Windows 10 Pro, 16 GB in RAM.

Please web-search "VERR_PDM_MEDIA_LOCKED site:forums.virtualbox.org", this is a common problem and a common solution.