Everytime i try to open the launcher theres an error message that says "the registry refers to a nonexistent Java Runtime Enviorment installation,the system cannot find the file specified".

Everytime i try to open the launcher theres an error message that says "the registry refers to a nonexistent Java Runtime Enviorment installation,the system cannot find the file specified". HELP PLEASE EMAIL-[CENSORED] I tried re-downloading minecraft and java.java is updated to its newest version >HELP PLEASE