Can't install JDK 9 because “Another Java installation is in progress”

Question

I have been using JDK 9 on Windows 10 x64 for a while but when I went to install the latest early release (b174), I first uninstalled the previous version (as usual) and then ra

Answer 1

Kill any remaining Windows® installer msiexec.exe processes using the Task Manager of Windows. The Windows installer process apparently locks any java files/processes which blocks the Java JDK to be updated.

My problem installing Java 9 began after I upgraded JetBeans IntelliJ which uses Java JRE/JDK. I first tried the suggested solution that BlackSheeep posted, but without any luck.