Looks to be an issue if you have Windows HyperV enabled.
Search for and Open up the “Turn Windows features on or off” and make sure “Windows Hypervisor Platform” is unchecked and hit OK to apply it.
Reboot computer and launch VM
https://superuser.co/questions/1442766/virtualbox-fails-to-start-with-verr-nem-vm-create-failed
More info here https://askubuntu.com/questions/1102580/print-req-error-i-0-error
Looks like the following error is due to there not being a floppy drive.
print_req_error: I/O error, dev fd0, sector 0
Disabling the Floppy Drive in the vSphere VM settings resolves the problem.
Sometimes the scaling can be wrong on a VM if you plug in a different monitor. You can fix the issue by opening up the location of the VirtualBox executable, right click on it, go to properties > Compatabiltiy > Enable Program DPI > Set to DPI to the Display of my main display when “I open this program”
Save by hitting OK
“C:\Program Files\Oracle\VirtualBox”
Log into the VM through ssh or XenCenter. Next remove xs-tools with yum
yum remove -y `rpm -qa | grep xe-guest`
reboot the machine.
reboot
XenServer tools should now be removed.
Install kernel headers, dkms, etc
dnf -y kernel-headers kernel-devel dkms gcc gcc-c++
Reboot the VM
reboot
Mount the Guest Additions by going to menu > Devices > Insert Guest Additions CD image… or you can hit “Host + D”.
The Host key is typically the Right Ctrl(On Windows) or CMD(On OS X) key.
Via the GUI
Mount the Guest Additions from your file browser, and then launch the “VBoxLinuxAdditions.run”.
You will need root privileges, so either launch your file browser as root, or drag and drop the “VBoxLinuxAdditions.run”, into a root terminal and hit Enter.
Via Command Line
mkdir /tmp/vbox sudo mount /dev/cdrom /tmp/vbox sudo /tmp/vbox/VBoxLinuxAdditions.run
If you run into any errors, try ejecting, and remounting the Guest Additions cd.