remember your config files
Linux Mint is based off of Ubuntu so your link's solution will work for you fine but you also have to think of all the configuration you may have been doing...
you will want to copy your home directories 'hidden' files, those stating with a '.', like .vimrc, .bashrc... etc
so you can retain your custom settings
also look into keeping other config files like fstab and /etc/profile and the like
what files to keep depends on how your distro keeps track of things and what programs you use and how
i'd suggest this time around to keep track of any changes or additions to your custom build as you do them into some file going forward so that when it's time to reinstall your OSs again you will know exactly how you like your system to be setup
windows really hates to play nice in regard boot loaders and fresh installs, your best bet if you need to reinstall windows would be to install it first and then reinstall the linux distro that has the bootloader that will let you choose at boot
Last edited by cin_; 03-31-2014 at 02:53 PM.