Got a bigger drive to install the Dev Kit in, and what I did was to cut and paste the main folder into the new drive, but now the launcher is trying to download and install the Dev Kit in my old drive and it doesn’t recognize the new location.
How do I direct the Launcher to the new drive?
I can use the Dev Kit if I use the .bat file, but can’t with the launcher and this will be a problem for Launcher Dev Kit updates.
got same problem, tried using UnrealVersionSelector (both of them) in \Epic Games\ARKDevKit\Engine\Binaries\Win64 to re-register it, but launcher still trying to download dev kit to old path
A new, community-hosted Unreal Engine Wiki - Announcements and Releases - Unreal Engine Forums i found this in about 10 seconds…
Yeah, very vague.
Now to guess folders 
Took me two seconds to see how vague is it.
xD
There is a youtube link below inside that link… if you spent 3 seconds you would have seen that… 
nobody has time to spend 3 seconds on anything.
This message took me 2.8 seconds to compose and write
Nope, tried linking the drives, not working.
2.7 seconds xP