Removing Virtual Box

[m654321]

[size=1em]Here are the commands from the LL 4.0 Release Announcement[/size]
[size=1em]https://www.freecinema2022.gq/forums/relea...-released/[/size]
[size=1em]-----------------------------------------------------------------------------------------[/size]
[size=1em]sudo apt purge virtualbox*[/size]
[size=1em]sudo systemctl stop vboxadd.service[/size]
[size=1em]sudo systemctl stop vboxadd-service.service[/size]
[size=1em]sudo systemctl disable vboxadd.service[/size]
[size=1em]sudo systemctl disable vboxadd-service.service[/size]

Does this also work for speeding up LL3.8 boot-time, which is slow on our Dell Lattitude D630?
I just want to check before entering this in command-line.

Many thanks for any replies.