Hello I want to run bootcamp, but right now i can only give 25 gb to windows. I'm going to buy another hardrive in about a month or two, but i was wonder if i could change the amount of gb windows will be given.
I would recommend that you don't use iPartition. After using it to resize some partitions my Recovery HD was deleted and Windows became unbootable. You can't use native OS tools, even though that's mentioned in the guide. GParted didn't work for me, either. The Winclone process is probably your best bet.