Originally Posted by saad1gamer
Kindly advise me how should I partition the hard disk to install these OSes. Also as pixellany mentioned, each OS needs 7 GB of space, I am confused about it. The reason is that Windows needs a lot of space for its applications. So if I install and download the important applications of Linux Oses it may require more space. Kindly also advise me about that. I may also install other DEs like Gnome for Mepis and KDE for Solus OS as well as their applications so what size shoud I give to each OS. With my best regards.
When setting up a system with many different versions of Linux, I would typically NOT install every application in each one---I would have one to use and then the others for experiments and evaluation.
I just checked my Arch install and it's a bit over 8GB, not including data. I have browser, e-mail, libreoffice, GIMP, shotwell, hugin, simple scan, inkscape, brasero, Adobe reader, and WINE with google sketchup. A bit more that a minimum system, but not huge.
If you want a lot of apps in each Linux version, then 10GB each might be better.
From my personal experience, I would not be surprised to see you set this up 10-20 times before you get it "just right"