I saw it before on a computer at school but sadly I failed to find out how to achieve it.
I want to make Windows Explorer read the Registry changes I made instantly without needing to re-log in or killing the explorer.exe process then start it again. I saw it at a unit at school before, one of the teacher was asking us how to show the hidden Folder Options in Windows Explorer via the Registry. I tweaked the registry and was about to log out when I noticed that the changes I made already took effect instantly and that Folder Options was already shown even before Windows Explorer was restarted.
Now I have a problem wherein I want to have that same setup on my own computer. As I said, I failed to investigate what tweak was on the unit at school that made it read the tweaks instantly.