So 1st I needed to make some harddisk space for linux since XP was occupying the whole disk.
Then I booted up the laptop from the USB Pen and waited for PartedMagic to load. Then I used GParted to resize the XP partition to almost half of the disk space.
When everything was done, I installed Linux Mint 13 XFCE on the remaining free disk space. It created a nice Grub menu, so now for the moment my wife is dual-booting.
She’s absolutely amazed by the computer’s performance, and finds her new Operative System beautifull.
A 3 year old laptop that was dragging has now come to a new life, and it’s faster than ever before!