In the Services window, find the Windows Installer option.Now search for services.msc and then choose the best match.If the Java 1618 Error Code still appearing while installation of Java product, then keep on following the other solutions.Now head back to the Java software installer and then begin the installation once more to see if the error is resolved.Once you find that option, make a right-click on that and hit on the End task option.Then find the processes labelled as msiexec.exe.On the taskbar of your computer, make a right-click.

Though this problem is prevalent with the Java installation case, some users also complained about a similar issue while installing Skype on their systems. NovemBy Sambit Koley While installing Java on your Windows 10 computer you may face an error code 1618. I did some research and found I could try restarting. Since my computer is new, I haven't downloaded Java or Skype and when I do, I get a an error code 1618. Source: How to Fix Java 1618 Error Code on Windows 10