yesterday i bought a new sata wd caviar 250gd hard disk and i want to partition it in one of 200gb and the other 50gb. so i booted of the windows xp cd, and first created the big partition 200gb and then created the small one 50gb using ntfs and installed windows on it. everything is fine but what bugs me is this. i installed powerquests partition magic 8 and my hard disk looks like this(i'm not home so i can't provide a screenshot) hard disk 250gb: local disk c:200gb - primary partition ntfs local disk d:50gb - logical partition ntfs extended partition - 50gb what i don't understand is the extended partition part. i never used partition before and i don't get how could there be another 50gb for that extended partiton? could someone explain this to me? and is it a problem that windows is on a logical partiton, not a primary? if windows should be on a primary partition, what can i do to make it one? thanks in advance.