Java is required for Thermotrack PC.
You can use any version of JAVA or OPEN JDK.
In all cases, you must use a 32-bit version (even if your PC is 64-bit).
Thermotrack PC will install OPEN JDK from Amazon Coreto.
If you wish to use JAVA, you can download the latest version free of charge here https://thermobouton.fr/ftp/plugandtrack/Tools/jre-8u91-windows-i586.exe