I just signed up for Parallels trial, and am trying to install windows. Because of my needs i would need to run the windows insider preview. Simply put, it installs forever and does nothing. (the auto install worked but when i supply an iso it does not). Steps i took: 1. Obtained ISO from official windows site. 2. Loaded up parallels, selected the ISO. 3. Left everything else as default. 4. Let it run for... HOURS. any help would be amazing. Im trying to migrate from windows to mac and rely on parallels for the one software i must use, but this would be a deal breaker for paralells (and mac) if i cant get it working.