upgrade from xp home to xp pro?

[suicide007]

I am currently running windows xp home because i lost my pro setup disc and borrowed the home ed. from a friend. I just found the pro disc, and was wondering if there was a way to upgrade it without losing all of my data.

I heard that you could boot from the disc and choose repair or womething, but i dont know if that erases everything.

And, i already tried it in windows, but it says it does not support upgrading home edition.

 

[Trotter]

Double post.