Originally posted by LikeASong:The usual thing is using the biggest partition (in your case, the 1TB one) for back-up -ing the info, and the other(s) for daily use. I can't see the point in three partitions though, maybe someone can give your further details. But I'd use the 1TB as possible back-up drive.
Windows backup for the smallest, documents and photos for another and your personal files (e.g. downloads, recordings, video edits etc) for the last.
Three is a bit excessive though - I'd have gone two, one for personal and one for private system backup.