Rooting and usuing titanium backup is the best way, or hmmm maybe installing clockworkmod and just reflashing the backup of your data (another name for apps in cwm) will easily in like 5 min put all apps and data back in instead of going through that stupid do you wish to install every app lol. Then just unroot but save the backup somewhere on a computer or something and do the restore. Then root and install the apps, then you can unroot again but I highly suggest keeping it rooted unless you have no idea what your doing or like breaking phones lol. If you would like the easy cwm way, just ask me (or us). Oh and you can easily unroot, if you do not like it.