Here are the three easiest ways to fix Java’s “not recognized as an internal or external command” error: Install or reinstall Java and the JDK on your computer Add Java’s bin directory to the computer ...

To fix the Eclipse “No Java virtual machine was found” error, simply edit the eclipse-inst.ini file and add the -vm flag, which points it to the java utility in the JDK bin directory: ...

3] End the MSIEXEC.EXE service. If the above-listed methods did not help you fix the issue, you can try terminating the MSIEXEC.EXE service. Many users have found this method useful.