The title pretty much says it all. This has been a constant issue for as long as I have used this feature. Every time I have it all set the way I want it, I install a new version over the top of the old one and ALL custom settings copy over EXCEPT the boot time defrag always unchecks the box so I have to go click it again (poor me, LOL). I don't see any listings in the registry that sound logical for it in: HKEY_CURRENT_USER\Software\Piriform\Defraggler or HKEY_LOCAL_MACHINE\SOFTWARE\Piriform\Defraggler. I was hoping perhaps I could add it to a logoff script as a work-around.