install ubuntu on a usb stick and under your supervison let em use it a couple of times see if it fits as of me i was widowed by xp insted of getting the primary install updated to win7xx i tried something new out of nowhere and i am out of windows running ubuntu ever since most important it just works and still didnt need a format or whatever and has not slowed down still but i must say damm broadcom gave me the nightnares at first i managed after lots of trial and error it worked.
overall linux is fine or rather better

oth i still got windows , but it now resides on a usb stick !