Various platforms, single machine, no virtual environment needed.
Various platforms, single machine, no virtual environment needed.
He already has Linux set up – likely he doesn’t need to waste time on this (and probably doesn’t have to).
Win10 insider builds come pre-activated as a free gift from Microsoft, though I’m not sure about upgrading via a DBoot setup—install Windows first, then switch to Linux. Ezpz dualboot is the recommended approach.
Indeed, I already linked him a how-to guide (actually, several, since my first post way above had a different, older guide for Vista). Blowing away the entire HDD and installing Windows first is likely easier, but I don't know how committed the OP is to his existing Linux install.
The issue seems to be with the hparted utility in Linux Mint. It appears you can't modify the size of your main partition because it's fully occupied by other partitions. Since you're using it for running Linux Mint, you might need more free space elsewhere. Placing the Windows ISO on a USB drive won't change the partition layout directly, but it could help you create a separate partition later if needed.