Java installed but MC can't locate

Unable to download 1.13 error states no Java. However, runs fin with Java recognized for all other versions.  Attempts to update etc fail even after a fresh Minecraft download and attempted install. 

Error details: The system cannot find the path specified
Filename on disk: javaw.exe
Path: C:/Program Files (x86)\Minecraft\runtime\jre-x64\1.8.0_25\bin\javaw.exe
Exists: false

 

Please investigate and correct.