Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148a Safari/6533.18.5) I apologize as I suspect this post would be better placed in a Mac os x forum instead. When I had a PC, I would periodically (once a year) wipe the hard drive and reinstall everything. I found this helped to have the computer run quicker, I assumed by cleaning the registry out. Obviously my Mac runs a number of maintenance protocols that help to mitigate this. Regardless, is there any benefit to a wipe and a reinstall from time capsule, or would the results be effectively the same? My ultimate concern is migration to a new MBP via time capsule, and I'm specifically concerned with wearing it down unnecessarily through this way, as opposed to manually reinstalling and transferring files.