In my mod, I want to change a existing follower in skyrim. I changed his looks and his clothing. When I start the game, he appears as I made him. However, when I recruit him, he turns naked and then reverts back to his old clothes...and not his new clothes. Is there something I have to do?

What mods are you using?

no mods, im just using vanilla

Certainly sounds like you've got a mod installed; in fact, it sounds like a problem you might encounter were you using some of my own work -- have you ever used mods in this save?

well I have mods installed. In the creation kit, I only have the skyrim and update esm on.

Mods affect how your mod runs regardless of what you had loaded in the CK.

What mods are you using in-game?

if you set standard outfit to none and just put the clothing in invetory they will start naked, some folower mod solves this, think it's fixable with an script who remove all clothing and then add it, something like this.

oninit()
removeallitem(dummychest)
dummychest.removeallitem(self)
endevent