Forum Discussion
Windows 10 1809 Hyper-V Broken?
Ran into this one myself.
Found the answer at https://social.technet.microsoft.com/Forums/en-US/ee5b1d6b-09e2-49f3-a52c-820aafc316f9/hyperv-doesnt-work-after-upgrade-to-windows-10-1809?forum=win10itprovirt
Start -> Settings -> Update & Security -> Windows Security -> App & browser control -> [Exploit Protection] Exploit protection settings -> [Program Settings] [Find C:\WINDOWS\System32\vmcompute.exe and expand, then] -> Edit -> [Code flow guard (CFG)] UNCHECK 'Override system settings'
Start vmcompute service from services or command line with 'net start vmcompute'
Ran into this one myself.
Found the answer at https://social.technet.microsoft.com/Forums/en-US/ee5b1d6b-09e2-49f3-a52c-820aafc316f9/hyperv-doesnt-work-after-upgrade-to-windows-10-1809?forum=win10itprovirt
Start -> Settings -> Update & Security -> Windows Security -> App & browser control -> [Exploit Protection] Exploit protection settings -> [Program Settings] [Find C:\WINDOWS\System32\vmcompute.exe and expand, then] -> Edit -> [Code flow guard (CFG)] UNCHECK 'Override system settings'
Start vmcompute service from services or command line with 'net start vmcompute'
Thanks for this suggestion - it's the first solid useful suggestion for why Hyper-V has been broken for me since last November or thereabouts. I'll be directing people here in future.
I found that I also had to disable Control Flow Guard protection on the 'vmwp.exe' process. Once I had done this, I simply restarted, and Hyper-V works again. Irritated that I didn't find your solution last year!By the way, I had just upgraded a Windows 10 Enterprise laptop to 19H1/1903 and had a similar problem (Hyper-V management not starting). This fix worked for me.
Thanks! That fixed it!
Rob
