I am trying to have a full installation of Manjaro and a full installation of Windows 7 at the same time. I only have 1 HDD, but I can add another if it is needed. I KNOW THAT THERE ARE SIMILAR POSTS, BUT THEY HAVE NOT WORKED FOR ME. I currently have a full installation of KDE Plasma Manjaro, and I would like the option to, when booting, go into BIOS and choose which operating system to boot into (Manjaro or Windows 7). It can be either Windows 7 or XP, as the program that I am using requires either one (I have a computer running Windows 11. The software I am using will jailbreak my iPod touch 4g, but I was nervous running it in compatibility mode. If it turns out that I should run the program in compatibility mode, please tell me in the comments). Can anyone help?