How does CurrentControlSet differ from ControlSet001 and ControlSet002?

Question

In the Windows registry, how does CurrentControlSet differ from ControlSet001 and ControlSet002? Which should be set when installing f

Answer 1

CurrentControlSet is technically not a "backup" as Gordon states.
It is a symbolic link to one of the ControlSets on the computer. It always points to the ControlSet that is currently loaded.