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Virtual machine could not started because the hypervisor is not running

HyperV- ErrorHi,

 I created a virtual machine "Windows7" on Windows 2012 R2 Hyper-V server box(INTEL R2208WTTYS) When I tried to start the VM, I get an error.
 Can you help?

Thanks.
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sglee
Asked:
sglee
1 Solution
 
bbaoIT ConsultantCommented:
ever tried manually starting Hypervisor's service and what error message did you see?
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sgleeAuthor Commented:
I see total eight HyperV related services. HyperV virtual Machine management is the only service running and set to start automatically. Other seven services are set for trigger start and they are NOT running currently.
Which one should I start manually?
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Lee W, MVPTechnology and Business Process AdvisorCommented:
Enable Hyper-V in the BIOS / UEFI - every time I've seen this issue it's because BIOS / UEFI doesn't have the appropriate virtualization settings turned on.  Microsoft allows you to install Hyper-V but cannot start it without the features turned on first.
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sgleeAuthor Commented:
Ok I will check BIOS in the morning. I set up VMWare on this box last year. But I replaced the MB a couple of month ago and applied all updates and maybe Visualization option is disabled in BIOS by default.
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Sajid Shaik MSr. System AdminCommented:
check bios in processor check the virtualization (check box should be selected)

then restart the machine
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sgleeAuthor Commented:
Intel Virtualization SettingYes it was because Intel Virtualization Setting in BIOS was "Disabled". After changing it to "Enabled" & rebooting the server, virtual machine started.

Thank you.
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Philip ElderTechnical Architect - HA/Compute/StorageCommented:
We build on this platform regularly. Make sure to enable _all_ Intel virtualization settings (Intel-vT for example).

Disable C-States and set all performance/fan profiles to PERFORMANCE. These settings will improve things as well.

I have an EE article on Some Hyper-V Hardware and Software Best Practices that may be of further help.
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sgleeAuthor Commented:
@philip
Thanks for the information and I appreciate it.
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