hypervisor_error
Moderate
Microsoft · Windows
The Windows Hyper-V hypervisor encountered a fatal error and cannot continue — this affects virtualization features including WSL2, Docker, Android emulators, and virtual machines
Quick Answer
Error code HYPERVISOR_ERROR on your Microsoft Windows means: The Windows Hyper-V hypervisor encountered a fatal error and cannot continue — this affects virtualization features including WSL2, Docker, Android emulators, and virtual machines. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Enter BIOS (restart and press DEL/F2) and verify that Intel VT-x (or AMD SVM/AMD-V) is Enabled under CPU or Advanced settings
2
Open Command Prompt as Admin and run: bcdedit /set hypervisorlaunchtype auto — then restart
3
Reinstall Hyper-V: open PowerShell as Admin and run: Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Hyper-V -All — restart when prompted
4
If you use VirtualBox or VMware alongside Hyper-V, ensure you are running a version that supports Hyper-V coexistence (VirtualBox 6.0+ or VMware Workstation 15.5+)
5
Run system file repair: open Command Prompt as Admin and run: sfc /scannow then: DISM /Online /Cleanup-Image /RestoreHealth
6
If the error started after a Windows Update, go to Settings > Windows Update > Update history > Uninstall updates and remove the most recent update
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Related Error Codes