virtualbox.org

I am unable to install the VBoxguestadditions.iso. Any suggestions ?

I tried most of the solutions online and I am still getting this error message. Any guidance ?

Unable to insert the virtual optical disk c:>> xxxx into the machine ubuntu.

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}

Google for "VERR_PDM_MEDIA_LOCKED site:forums.virtualbox.org". This issue has been discussed many times before so you should have no problem.