2 Apr 2020, 20:02

@syfer1987 I'm not sure I understand the situation, but, let me try to help:
First, install RECALBOX on a USB stick and check if your computer is compatible, some video cards are not, and if so, there is no point in continuing to try to install in dual boot.
RECALBOX is based on Linux, so it is easier and more recommended for you to dual boot with Linux, I think that installing RECALBOX and then LINUX, in that order, is even easier (In the opposite order, I believe it will require that you edit the grub manually).
35Gb is a lot of space if you are not going to put the ROMS on the same HD, I can't say what the minimum space used by the system is, but I think that without any ROM, 4GB should be enough (I'm guessing).
If you want to try Recalbox with Windows on Dual boot, I recommend this topic (in French, but it is the best topic on that subject):
https://forum.recalbox.com/topic/17464/dualboot-recalbox-windows-sur-pcs-laptops-avec-bios-ou-uefi-27-04-19?_=1585857631180