I installed them by the order you've mentioned in the reply. I didn't install armoury crate service as I had it already. I was confused about the 1st one so installed it. And then the hotkeys one. Btw when i installed them, nothing happens, a command window pops up for the ASUS System Control Interface V2 one and then closes, and the hotkeys one just asks, and when i click on yes, nothing happens. No pop up asking for restart, nothing at all.
Also, I can't find the old software to remove except the armoury crate service. Can't seem to find where the drivers are and how to remove them.