I have a SP1 that will be going to my wife. I will also be getting the SP2 as a replacement for myself. The questions I have is, assuming I backup all my data, what would be the best way to refresh the SP1? For example, I know that resetting to factory defaults would require the 8.1 update and time to complete it. What about uninstalling the apps I put on it and cleaning out the data then just have her login with her account? I know there is also an option to reset the system files without destroying the OS. I seek your advice on my next step.