I have a netbook with a huge 10 hour battery collecting dust with XP on it.
If i was to upgrade to win10 i would have to pay for it though right?
Yeah, no freebies upgrading from XP. Maybe it might be worth finding a cheap Win7 license somewhere (depending on where you look for such things), putting that on, and -then- upgrading. Just be sure whatever version of 7 you get will allow a free upgrade.