I am trying to install both AEM Forms 6.3 server as well as the workbench but both installers hangs at the "Installing Merge Module" step.
I have had AEM process/server + the workbench (with Designer) installed on this machine previously so the installation files are intact. However, I am suspecing this has something to do with Windows 10 "Fall creators update" that was recently rolled out.
For anyone having the same issues I'll add some info on how I managed to solve this. First of, I am using a Lenovo ThinkPad X1 Carbon with both WIFI and cellular connection.
Turning off both WIFI and cellular solved this problem. Having the laptop completely offline helped the installer do everything it needed.
I can only speculate as to why but it seems it has something to do with the firewall or some network request Java/InstallAnywhere is trying to make (but for some reason can't). I had tried adding rules to my local firewall but that did not work.