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...

Thank you but I believe this is the correct page for my installation (Forms/Workbench/Designer):Adobe Experience Manager Help | Supported Platforms for AEM Forms on JEE Windows 10 is stated as supported.

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 t...