Fixing “The Hypervisor Is Not Running”: 4 Quick Fixes to Restore Hyper-V

Iris Li

When a virtual machine won’t start and Windows throws the chilling message “the hypervisor is not running,” even routine tasks can grind to a halt. Vinchin’s clear, step-by-step guide — walks you through four practical fixes (enable DEP and virtualization in BIOS, update your BIOS, or roll back a recent Windows update) and shows how to protect your data with proper Hyper-V backups.

Read on to quickly diagnose which of these common causes applies to your setup and get your VMs back online with minimal disruption.

How to Fix Hypervisor Is Not Running in 4 Easy Ways?

Simon Haverford

I enabled virtualization and DEP in BIOS like step one says, but it still says “not running.” Is there a quick command to force-start the hypervisor? 😭

Sylas Beaumont

Simon Haverford Try running this in an elevated CMD:

bcdedit /set hypervisorlaunchtype auto

Then reboot the host. In many cases that marks the hypervisor to launch at boot and fixes the issue after a restart.

Julian

Where can I find logs for “the hypervisor is not running”? Which files or locations have more detailed errors? I want to upload logs — where are they stored?