Recently reinstalled OS X and changed my user name so my home folder is not the same in my time machine backup and the current backup. Extracted all my files manually so thats fine but is there some way I can prevent time machine from backing up everything from my new account all over again? Basically it wants to copy everything from my backup to my hard drive, then back again to the backup. I don't like that as files can get garbled up and music garbled in places. It's like 200 GB so it will take a while. Is there any other way to do it? It's the same account only with another name.