Running OS 10.13 on a Macbook Pro, Parallels 9 (updated) installed with Windows 7 (32 bit version). Attempting to run Windows 7 we get a "fatal error occurred in the virtual machine 'Windows 7'" and "Your virtual machine may run slow because virtualization support is disabled on your Mac.". We have so far been unable to get around these problems. We have allowed Parallels Desktop and Parallels access agent in System Preferences as suggested elsewhere but that didn't help.
Hi FredB2. Parallels Desktop 9 is not compatible with macOS High Sierra. Please refer this article to know about Parallels Desktop and Mac OS (Host) compatibility. Kindly install Parallels Desktop 13 for Mac which is the latest version to resolve the issue.
