Virtualbox 4.2 not booting any virtual machines
68647
VirtualBox - RTR3InitEx failed with rc=-1912 (rc=-1912)
58772
VirtualBox error after last (Ubuntu) Software Update
45008
Trouble with Ubuntu installation in VirtualBox
155325
What does "No bootable medium found" mean in VirtualBox?
120129
How to boot from a USB drive in VirtualBox?
80797
Virtnetwork Cannot Start Virtualizor KVM
128459
Virtualbox not seeing any usb devices in the usb filters settings
59534
How to turn a Windows XP partition into a VirtualBox virtual machine?
93096
Can I backup a running virtualbox Virtual machine?
95052
VirtualBox NS_ERROR_FAILURE (0x80004005) Mac
101628
How to uninstall VirtualBox in 12.04?
107093
How do I improve the performance of my VirtualBox guest?
139647
Do I Need Linux Drivers For Virtual Box?
46589
"Protocol error" mounting VirtualBox shared folders in an Ubuntu guest
104536
Windows update not working in VirtualBox
7852
Virtualbox not launching on Ubuntu 18.04 - Qt lib problem
86525
Virtualbox: OS cannot use the new extended disk space (.vdi)