JDK 17 tightens security without sacrificing compatibility—but only if you use the correct java.exe .

Create a batch script:

sdk install java 17.0.2-tem

You will see for sustained loads.

The .exe installers from reputable sources (like Oracle or Microsoft’s Build of OpenJDK) are digitally signed. This allows Windows User Account Control (UAC) to verify the publisher. This adds a layer of security that a simple .zip file lacks, protecting your machine from tampered binaries. When should you avoid the .exe?