Jdk location

No matter what i have tried. Unity cant find my jdk location. Im goind crazy. Any thoughts?

by unity u means u want unity to do it it self ?
because usually u have to set it manually from Edit > Preference > ExternalTools

@Cuttlas-U I have tried to add it into my External tools and it keeps saying invalid JDK home location. It was working fine for awhile and all of a sudden it stopped and had the error.