If you see Failed to Acquire the VirtualBox COM Object in VirtualBox on Windows then you may need to restore ACL Permissions.

First, start the VirtualBox Manager. Now, click on the Virtual Machine that is in the saved state. Once selected, right-click on the VM and select Discard Saved State. Hopefully, this will fix the ...

If you find yourself with a mismatched VirtualBox and VirtualBox Extension Pack release, such that VirtualBox itself cannot resolve, Jack Wallen shows you how to fix this from the command line.