Hi!
I tried Windows Phone Emulator in Hyper-V.
It reports that Hyper-V Hypervisor is not running error.
So, How to start Hyper-V Hypervisor?
And also - how to stop Hyper-V Hypervisor? I need it.
No matter of solution, I accept also writing into Windows registry - I'm not newbie, but I never used Hyper-V.
Q is for this: I need to be sure when is Hypervisor on or when is off - for controlling system.
Miro
For Hyper-V virtual machines to run, hypervisor needs to be started before Windows kernel. This means that turning it on or off always requires a restart.
You can add a boot menu option to turn hypervisor on when you need it by modifying Windows boot records. Open an elevated Command Prompt and enter following command to copy current boot configuration to boot menu entry Hypervisor ON:
bcdedit /copy {current} /d "Hypervisor ON"
This adds a new default boot configuration with identifier {default}.
Next, make the new default boot configuration to turn hypervisor on with following command:
bcdedit /set {default} hypervisorlaunchtype auto
Default OS or boot configuration will be booted if user makes no selection in given timeframe, by default 30 seconds. As you would not want your new Hypervisor ON boot configuration being default, move it to last item on boot menu:
bcdedit /displayorder {default} /addlast
To be sure that your original boot configuration boots to Windows without hypervisor, enter following command:
bcdedit /set {current} hypervisorlaunchtype off
Now you will be shown a boot menu every time you boot computer. Select Windows 10 if you want to boot without hypervisor, or select Hypervisor ON when you need Hyper-V.
Kari
EDIT:
Forgot to add screenshot of boot menu created with commands in this post:
Last edited by Kari; 09 Jul 2018 at 06:03. Reason: Added a screenshot
Additionally, this allows users to use virtualbox or vmware by selecting "Windows 10" if desired.For Hyper-V virtual machines to run, hypervisor needs to be started before Windows kernel. This means that turning it on or off always requires a restart.
You can add a boot menu option to turn hypervisor on when you need it by modifying Windows boot records. Open an elevated Command Prompt and enter following command to copy current boot configuration to boot menu entry Hypervisor ON:
bcdedit /copy {current} /d "Hypervisor ON"
This adds a new default boot configuration with identifier {default}.
Next, make the new default boot configuration to turn hypervisor on with following command:
bcdedit /set {default} hypervisorlaunchtype auto
Default OS or boot configuration will be booted if user makes no selection in given timeframe, by default 30 seconds. As you would not want your new Hypervisor ON boot configuration being default, move it to last item on boot menu:
bcdedit /displayorder {default} /addlast
To be sure that your original boot configuration boots to Windows without hypervisor, enter following command:
bcdedit /set {current} hypervisorlaunchtype off
Now you will be shown a boot menu every time you boot computer. Select Windows 10 if you want to boot without hypervisor, or select Hypervisor ON when you need Hyper-V.
Kari
EDIT:
Forgot to add screenshot of boot menu created with commands in this post:
I am having some kind of a similar issue. Though my issue is, I want to turn off HyperV completely. All was fine in Windows 10 build 1509 and I was able to turn on or off hyperV in windows features without issue.For Hyper-V virtual machines to run, hypervisor needs to be started before Windows kernel. This means that turning it on or off always requires a restart.
You can add a boot menu option to turn hypervisor on when you need it by modifying Windows boot records. Open an elevated Command Prompt and enter following command to copy current boot configuration to boot menu entry Hypervisor ON:
bcdedit /copy {current} /d "Hypervisor ON"
This adds a new default boot configuration with identifier {default}.
Next, make the new default boot configuration to turn hypervisor on with following command:
bcdedit /set {default} hypervisorlaunchtype auto
Default OS or boot configuration will be booted if user makes no selection in given timeframe, by default 30 seconds. As you would not want your new Hypervisor ON boot configuration being default, move it to last item on boot menu:
bcdedit /displayorder {default} /addlast
To be sure that your original boot configuration boots to Windows without hypervisor, enter following command:
bcdedit /set {current} hypervisorlaunchtype off
Now you will be shown a boot menu every time you boot computer. Select Windows 10 if you want to boot without hypervisor, or select Hypervisor ON when you need Hyper-V.
Kari
EDIT:
Forgot to add screenshot of boot menu created with commands in this post:
Problem started when I updated to anniversary update. I was unable to turn it off; freezing the pc on desktop at start up when turned off. In other words, HyperV services in Windows features needed to be on always for my pc not to freeze. Hence unable to use VM or Android as it cause some kind of conflict resulting in bluescreen.
I managed to find out that using bcdedit I turned hyperV to off as it was on auto. Now windows is able to load after 2 or 3 hard reset...
today I tried setting hyperV on auto again on bcdedit, and it booted normally without hanging -_-'
Seems the ans is in your proposed solution...or if you have any clue of the root cause of this ....
will try out some experiments to see and successful solution...
kindly let me know if anyone had similar issue
Quote
