Complete uninstall Virtualbox - Super User
https://superuser.com/questions/1212182/complete-uninstall-virtualbox
Web ResultMay 24, 2017 · 1. you don't uninstall virtual machines, you either delete them, or mount a Centos install disk to the VM, and boot from it to reinstall the OS over the existing one. as for your virtualbox settings, they are likely in your user profile in your %appdata% directory, so check in `C:\Users\yourusernamehere\Appdata\Local\.virtualbox`. – Frank Thomas.
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