Old Epic Games istallation on new Windows

Hello. I have reinstalled Windows. I had and still have Epic Games software installed on separate drive.
I tried to launch Epic Launcher and it works. However it cant see pr eviously installed engine (UE_4.23)
Folder structure goes like:
drive\Epic Games\Launcher
drive\Epic Games\UE_4.23

So the question is – should I use that old Laucher and how I can make it see engine installed?