Hi guys, I have two operating systems one is Ubuntu 18.04. and the other is Win10 home. Both of them are installed on two separate SSD discs (both discs have 500GB capacity). I have installed them on separate discs because I don't want to hurt one of the OS if I need in the future to reinstall one of them. The problem is that every time I want to switch the OS I have to go to the bios and switch the boot order which is getting annoying. I have divided the Ubuntu disc as follows swap partition 6GB (I don't use hibernating), home partition 15GB and the rest is for the main partition. Is there any possibility to post-install grub without touching any of the two operating systems?.