If you are trying to run a game that conflicts with the Windows hypervisor stack and keeps throwing errors such as “A Hypervisor Is Already Running,” “Is the Hypervisor Running,” or “Cannot Start Denuvo Service,” you are dealing with a fundamental clash between Windows virtualization features and your game’s anti-cheat or DRM protection layer. These errors appear across a wide range of titles and block the game from launching entirely until the hypervisor conflict is resolved.
This guide covers the complete method to run any hypervisor-sensitive game on Windows PC, addressing every layer of the conflict in the correct order so you can apply this solution once and use it for any game that produces these errors.
Why Games Conflict With the Windows Hypervisor
Modern games using Denuvo, Hyperion, EasyAntiCheat, or similar protection systems require direct access to the CPU virtualization layer during their initialization sequence. When Windows has already claimed that layer through Hyper-V, Memory Integrity, VBS, or related features, the game’s protection system cannot initialize correctly and throws a hypervisor related error.
Common triggers include:
- Hyper-V running in the background and holding exclusive CPU virtualization access
- Memory Integrity and VBS locking the hypervisor stack against third-party drivers
- Windows Hypervisor Platform enabled alongside game anti-cheat components
- Secure Boot blocking game protection drivers from loading at the kernel level
- AutoLoadHV boot entry pre-loading the hypervisor before the game can claim it
- Virtual Machine Platform maintaining active hypervisor hooks after Hyper-V removal
- WSL 2 holding the hypervisor open silently during game launch
- HvHost service reactivating hypervisor components in the background
How to Run Any Hypervisor Game on Windows PC
Step 1: Disable Hyper-V Through BCDEdit
The first and most critical step is preventing Windows from loading its hypervisor during the boot sequence entirely. This frees the CPU virtualization layer before any game or application attempts to access it.
Steps:
- Right-click the Start button and select Windows Terminal (Admin) or Command Prompt (Admin)
- Type the following command and press Enter: bcdedit /set hypervisorlaunchtype off
- Wait for the confirmation message: The operation completed successfully
- Do not restart yet — continue through all steps before rebooting
Step 2: Remove All Hyper-V Related Windows Features
Disabling the BCDEdit entry alone does not remove all hypervisor components from the system. Therefore, stripping every Hyper-V related feature through Windows Features ensures nothing reactivates the stack during game launch.
Steps:
- Press Win + R, type optionalfeatures, and press Enter
- Locate and uncheck each of the following: Hyper-V Windows Hypervisor Platform Virtual Machine Platform
- Click OK and allow Windows to process the feature removal completely
- Do not restart yet — proceed to Step 3
Step 3: Disable Memory Integrity and VBS
Memory Integrity and Virtualization Based Security maintain an independent hold on the hypervisor layer. Consequently, game protection drivers cannot access the kernel resources they need even after Hyper-V is fully removed, producing hypervisor errors on every launch.
Steps:
- Press Win + I and navigate to Privacy and Security, then Windows Security
- Select Device Security and click Core Isolation Details
- Toggle Memory Integrity to Off
- Press Win + R, type gpedit.msc, and navigate to: Computer Configuration, Administrative Templates, System, Device Guard
- Double-click Turn On Virtualization Based Security and set it to Disabled
- Click Apply and OK to save the policy change
Step 4: Disable Secure Boot in BIOS
Secure Boot enforces firmware-level driver signature validation that blocks game protection drivers from loading at the kernel level. Disabling it removes this firmware barrier and allows anti-cheat and DRM components to initialize correctly.
Steps:
- Restart your PC and enter BIOS/UEFI using F2, Delete, F10, or F12 depending on your motherboard
- Navigate to the Security or Boot tab
- Locate Secure Boot and set it to Disabled
- Save your changes and exit BIOS
- Do not launch any game yet — complete the remaining steps first after Windows boots
Step 5: Disable the HvHost Service
The HvHost service supports Hyper-V guest operations and can quietly reactivate hypervisor components in the background even after all features are disabled through Windows Features. Stopping and disabling this service closes this background reactivation pathway permanently.
Steps:
- Press Win + R, type services.msc, and press Enter
- Scroll down and locate HV Host Service in the list
- Right-click it and select Properties
- Set the Startup Type to Disabled
- Click Stop if the service is currently running
- Click Apply and OK to save the change
Step 6: Shut Down WSL 2 and Clear the AutoLoadHV Boot Entry
WSL 2 holds the Windows hypervisor open silently during normal Windows sessions. Additionally, the AutoLoadHV boot entry forces the hypervisor to pre-initialize before any game can claim the CPU virtualization layer. Addressing both together eliminates the final background hypervisor pathway.
Steps:
- Open Windows Terminal as Administrator and run: wsl –shutdown
- Open Command Prompt as Administrator and run these commands separately: bcdedit /set {current} hypervisorlaunchtype off bcdedit /deletevalue {current} hypervisorlaunchtype
- Confirm both commands return a success message before proceeding
Step 7: Disable Controlled Folder Access and Configure Antivirus Exclusions
Antivirus real-time protection and Controlled Folder Access silently block game protection drivers from writing, reading, and deleting their token and license files. This causes token deletion errors and service initialization failures alongside hypervisor errors.
Steps:
- Open Windows Security and go to Virus and Threat Protection
- Click Manage Ransomware Protection and toggle Controlled Folder Access to Off
- Navigate to Virus and Threat Protection Settings and click Add or Remove Exclusions
- Click Add an Exclusion and select Folder
- Add your entire game installation directory as an exclusion
- Also add the following paths as separate exclusions: C:\ProgramData\Denuvo C:\Users[YourUsername]\AppData\Local\Denuvo
- Restart your PC fully after completing this step
Step 8: Restore Driver Signature Enforcement Settings
Incorrect boot configuration related to driver signature enforcement breaks the certificate trust chain that game protection services depend on. Restoring these settings ensures Windows accepts legitimate game drivers through the proper trust chain.
Steps:
- Open Command Prompt as Administrator
- Run the following commands one at a time: bcdedit /set testsigning off bcdedit /set nointegritychecks off bcdedit /set loadoptions ENABLE_INTEGRITY_CHECKS
- Restart your PC after all three commands complete successfully
- Confirm the Test Mode watermark is absent from your desktop after restarting
Step 9: Verify Game Files and Launch as Administrator
After completing all previous steps and restarting your PC, verifying game files ensures no corrupted components remain from previous failed launch attempts. Launching with administrator privileges provides the game’s protection layer with the system access it needs to initialize without encountering residual permission conflicts.
Steps:
- Open Steam or your relevant launcher and navigate to your game library
- Right-click the game and select Properties, then go to Local Files
- Click Verify Integrity of Game Files and wait for the process to complete
- After verification, locate the game shortcut or executable
- Right-click and select Run as Administrator
- Click Yes when prompted by User Account Control
- Allow the game to load fully and confirm all hypervisor errors are resolved
All Hypervisor Errors Fixed by This Method
Following every step in this guide resolves the following errors across any hypervisor-sensitive game on Windows PC:
- A Hypervisor Is Already Running
- Is the Hypervisor Running query failure
- Hypervisor Detected on launch
- VBS/HVCI is still enabled error
- Cannot Start Denuvo Service
- Windows Cannot Verify the Digital Signature for This File
- Denuvo Tried to Delete the Token
- Blocked deletion of token file
- The driver couldn’t be loaded
- AutoLoadHV conflict at startup
- Reflex-RS initialization error
- Third-Party Software Is Interfering error
How to Re-Enable Hyper-V After Gaming
If you use Hyper-V, WSL 2, or Windows Sandbox for development or other tasks, restoring the full hypervisor stack after your gaming session takes only a few minutes.
Steps:
- Open Command Prompt as Administrator and run: bcdedit /set hypervisorlaunchtype auto
- Press Win + R, type optionalfeatures, and re-enable: Hyper-V, Windows Hypervisor Platform, Virtual Machine Platform
- Open Windows Security and re-enable Memory Integrity under Core Isolation
- Open Services and set HV Host Service Startup Type back to Manual or Automatic
- Re-enable Secure Boot through BIOS if your environment requires it
- Restart your PC to apply all changes fully
Important Notes
Disabling Memory Integrity, VBS, and Secure Boot temporarily reduces your system’s kernel protection level. Therefore, avoid running unverified software or visiting untrusted websites while these features are turned off. Re-enable them promptly after your gaming session if system security is a priority.
Furthermore, major Windows updates frequently re-enable Memory Integrity, Virtual Machine Platform, and Hyper-V silently as part of their security baseline restoration. If hypervisor errors return after a Windows update, repeating Steps 1 through 3 of this guide restores the bypass configuration in just a few minutes.
Conclusion
Running any hypervisor-sensitive game on Windows PC requires addressing every layer of the Windows virtualization stack in the correct order. By disabling Hyper-V through BCDEdit, removing all related Windows features, turning off Memory Integrity and VBS, clearing the AutoLoadHV boot entry, disabling the HvHost service, shutting down WSL 2, and configuring antivirus exclusions, every known hypervisor conflict that blocks game launches is resolved in a single session. Follow every step from top to bottom, restart your PC after Step 6, and any hypervisor-sensitive game will launch cleanly on your Windows PC without these errors appearing again.
