The Hypervisor Error is a Blue Screen of Death (BSOD) that appears when Windows fails to manage its virtualization layer. When this crash occurs, your system suddenly restarts and displays the HYPERVISOR_ERROR stop code.

Windows uses a hypervisor to run virtualization features such as Microsoft Hyper-V, Windows Subsystem for Linux, and Windows Sandbox. If this virtualization layer becomes unstable, Windows cannot continue running and immediately triggers a BSOD.

Many users encounter this error after installing Windows updates, enabling virtualization features, or running virtual machines. Fortunately, several proven fixes can resolve the issue quickly.

What Causes Hypervisor Error

Several system problems can trigger the Hypervisor Error BSOD. Identifying the root cause helps you apply the correct fix.

Common causes include:

• Corrupted virtualization components
• Conflicts with third-party virtualization software
• Outdated BIOS firmware
• Faulty or unstable RAM
• Driver conflicts after Windows updates
• Security features such as Memory Integrity interfering with virtualization

In most cases, the error occurs because Windows virtualization features conflict with system drivers or firmware.

How to Fix Hypervisor Error in Windows

Follow these fixes one by one until the issue disappears.

1. Disable Hyper-V (Quickest Fix)

If you do not actively use virtual machines, disabling Hyper-V often resolves the error immediately.

Steps:

1. Press Windows + R
2. Type:

optionalfeatures

3. Press Enter
4. Locate the following options and uncheck them:
   • Hyper-V
   • Virtual Machine Platform
   • Windows Hypervisor Platform
5. Click OK
6. Restart your computer.

Disabling these features prevents Windows from loading the hypervisor layer during startup.

2. Turn Off Memory Integrity

Windows security features sometimes conflict with virtualization drivers.

Steps:

1. Open Windows Security
2. Select Device Security
3. Click Core Isolation
4. Turn Memory Integrity OFF
5. Restart your computer.

Many users report that disabling this feature immediately stops the Hypervisor Error crash.

3. Update Your BIOS Firmware

An outdated BIOS often causes virtualization instability.

Motherboard manufacturers release firmware updates that improve CPU virtualization compatibility. Check your motherboard manufacturer’s website and install the latest BIOS update.

Common manufacturers include:

• ASUS
• MSI
• Gigabyte

After updating the BIOS, restart the system and check whether the error disappears.

4. Disable Virtualization in BIOS

If you do not use virtualization tools, disabling virtualization at the hardware level can eliminate the error.

Steps:

1. Restart your PC
2. Enter BIOS setup (usually F2, DEL, or F10)
3. Locate virtualization settings:
   • Intel VT-x
   • AMD-V
4. Set virtualization to Disabled
5. Save changes and restart.

This prevents Windows from loading the hypervisor completely.

5. Repair Corrupted Windows System Files

Corrupted system files can break virtualization services.

Run the Windows system repair tools.

Steps:

1. Open Command Prompt as Administrator
2. Run the following command:

sfc /scannow

3. Wait until the scan completes.

Next, run:

DISM /Online /Cleanup-Image /RestoreHealth

These commands repair corrupted Windows files and restore missing system components.

6. Install the Latest Windows Updates

Microsoft frequently releases updates that fix virtualization bugs.

Steps:

1. Open Settings
2. Select Windows Update
3. Click Check for updates
4. Install all available updates.

Restart your PC after the update finishes.

7. Check RAM for Hardware Issues

Unstable memory can also trigger Hypervisor BSOD crashes.

Steps:

1. Press Windows + R
2. Type:

mdsched.exe

3. Choose Restart now and check for problems

Windows will test your RAM for errors during reboot.

When the Hypervisor Error Usually Happens

Users most commonly see the Hypervisor Error when:

• Running virtual machines
• Using Docker or WSL
• Launching virtualization software
• Playing games with kernel-level anti-cheat
• Installing major Windows updates

If the crash started after enabling virtualization features, disabling them usually fixes the problem.

The Hypervisor Error BSOD usually appears because Windows virtualization components conflict with system drivers, firmware, or security features.

Start with the simplest fixes first:

1. Disable Hyper-V
2. Turn off Memory Integrity
3. Update BIOS firmware
4. Repair Windows system files

Most systems stop crashing after applying one of these fixes.