Since "78setup" is not a widely recognized standard term in technology or business, this post assumes the most likely context: it is either a specific internal project name, a typo for , or a username/handle.
If the mouse fails in WinPE, use Tab to switch between buttons and Enter or Space to activate them. 78setup
[Target Directories] ──> [Scans Hard Drives/USBs] ──> [Generates Installer List] Since "78setup" is not a widely recognized standard