ManojK@Parallels
Parallels Support
Please try to recreate the same issue on a test virtual machine as per this article and let us know how it goes.
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Hi Allen, please shut down your virtual machine and go to Configuration->Hardware->CPU and Memory and choose "Advanced settings" and to uncheck "Nested Virtualization" and then restart Parallels Desktop and reinstall Parallels Tools tp fix the issue. Thanks!

Paul - referring to my screenshot above - can you tell me where to locate the 'advanced' checkbox/switch in order to fix?Hi Allen, please shut down your virtual machine and go to Configuration->Hardware->CPU and Memory and choose "Advanced settings" and to uncheck "Nested Virtualization" and then restart Parallels Desktop and reinstall Parallels Tools tp fix the issue. Thanks!
Hi, please disable it the following way:I also get a infinite loop "CRITICAL_PROCESS_DIED" BSOD don't have the Pro version and cannot uncheck "Nested Virtualization". Great, I cannot do my work. Great, I'm a beta-tester.
Can I downgrade to Parallels 10 where the "Advanced settings" option is present?
Thanks a lot for paying for an 11 upgrade to get a inferior product. I want Parallels 10 back!
well, you may try to recreate a VM (new VM will have this options turned off for sure) and connect existing hard disk as per http://kb.parallels.com/en/121578 (screenshots are out-of-date but still should be ok).Locate VM.pvm file (by default in ~/Documents/Parallels/ directory) > Right-click it > Show package contents > locate config.pvs > open it with textedit, locate "VirtualizedHV" and set it to "0"
nope, different error messages but same result - my VMs are still hosed .... #Seriously-not-impressed
I downloaded the image Microsoft Edge on Windows 10, and it works fine. 10 minutes of uptime at this moment.Please try to recreate the same issue on a test virtual machine as per this article and let us know how it goes.