These were the instructions and link I was given: https://fe.parallels.com/7ae0f194f9436958290b27e3a2b57fbc/ParallelsAccess-5.6.0-36436-win.exe 1. Uninstall the 6.5.3 version (or whatever PC version) you have now 2. Download the Installer 3. Install using the Installer 4. Once prompted to update to version 6.x , skip/ignore it so that version 5.6 is installed. Make sure you check off the box that doesn't automatically update to current version or it will check for it and install the 6.5 version back I don't do anything fancy except needing to connect to my PC from my iPad daily for a few hours of operations, but was always crashing after the 5th or 6th day. So far going over 2 weeks and no problems. They (Tech Support) told me when and more stable update for the PC is found they will advise, but for now this version is working fine for me.