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I am getting an error in Virtual Box: "Failed to open session for the virtual machine" "VT-x is not available (VERR_VMX_NO_VMX)"

My machine is a Dell Precision Tower 3620. When enter the bios by pressing F2 and go to the Intel Virtualization screen is is ticket on.

What do I need to do to get this working?

My host OS is Windows 10 Enterprise.

This happened after I installed Docker and uninstalled it again.

Virtual Box error message

Damian
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2 Answers2

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I got it working by turning off Hyper-V in Windows 10 Features panel.

Damian
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This might be of help with VERR_VMX_NO_VMX and VERR_SUPDRV_NO_RAW_MODE_HYPER_V_ROOT errors too https://superuser.com/a/1415967/155706

Hrobky
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