I have Ubuntu installed, but I need a Windows next to it. I'm trying to follow this guide to do so, but when I reach the screen where I'm supposed to choose the space for Win I'm getting an error: "Windows cannot be installed to this disk. The selected disk is of the GPT partition style" (screenshot here).
Of course I've tried to change the partition style, by following another guide. Currently, gdisk results for the drive are saying that it's MBR only and GPT is not present: gdisk results
I've tried to create a Win pendrive with Rufus (with both MBR and GPT settings), but then I'm getting error "Windows cannot find the Microsoft license software terms" error afer entering the Win license key.
I'm stuck, no idea how to do it other than formatting the drive and installing Win and then Ubuntu, but this I'd rather avoid, as I don't want to format an SSD and it's a lot of work to install back all the stuff on the Ubuntu.
os-prober
andupdate-grub
when you're done