virtualbox.org

How can trun off logs:$HOME/VirtualBox VMs/{machinename}/Logs
and
$HOME/VirtualBox VMs/{machinename}/Logs/{machinename}.log
$HOME/VirtualBox VMs/{machinename}/Logs/{machinename}.log1

Why?

Those logs provide important diagnostic information in case problem occurs when running a VM. Logs are only kept for the last 4 sessions, so space taken is usually trivial by modern standards. Certainly so when compared to the space taken by the virtual disk files.