upgrading windows xp sp2 to windows 7 without an optical drive?
TL;DR Question: Can we download windows 7 and update an unofficial xp sp2 o.s. to an official windows 7 without use of an optical drive.
My girlfriends rig is done, we are 1 sata cable and sata power cable short of finishing it, it is running windows xp sp 2 (an unofficial version from my dad) which was never inteded to stay on the computer long term, she already has a physical copy of windows 7 that she wants to put on the computer, but the optical drive is not hooked up until we get a sata cable (30 minute trip to the store, happening tomorrow). In the meantime we have an 8mb/s hardline into the house, we were wondering if we could DL windows 7, and update from xp sp 2 to windows 7 without the optical drive.