On one computer, Win XP is installed on partition which is only 15Gb (you can guess it is not enough), but there is 20GB more on other partition on same disk. Is it possible to resize that partition with Win XP on without any damage or reinstalling Win XP? I don't care about other partition, only the main one is immportant. I heard it is possible with Partition magic , but I must be sure how is it done.