• Credit to russalex: https://github.com/Microsoft/WSL/issues/143#issuecomment-209072634
• Credit to nuclearmistake: https://github.com/Microsoft/WSL/issues/143#issuecomment-209075558

sudo vim /usr/sbin/policy-rc.d
Put this in the file:

#!/bin/sh
exit 101

save it then:

sudo chmod +x /usr/sbin/policy-rc.d
sudo dpkg-divert --local --rename --add /sbin/initctl
sudo ln -fs /bin/true /sbin/initctl