In past experiences I have used other shells, but something happend with one of them it turned out, and it ends up that one of those alternate shells actually DELETED my windows shell, making me use that or a different shell all together... I'm asking if Litestep will do this. (as delete and replace the original windows shell god forbid i wish to go back..)

I've tried many shell replacements and never heard of that before.

No, Litestep doesn't do that.

I remember some apps that worked like that where they did some tweaking like that.