Tools like DSEO 1.3b can sign a specific .sys file with a test certificate, marking it as trusted. This method requires enabling Test Mode as well.
The most common culprit for Code 39 on Windows 11 is Memory Integrity. Disabling it allows legacy virtual drivers to load.
Go to > Advanced options > Startup Settings > Restart .
If the driver works after a temporary disable, you can put Windows into Test Mode permanently: Virtual Usb Multikey Code 39 Windows 11
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceGuard\Scenarios\HypervisorEnforcedCodeIntegrity Double-click the value and set its Data to 3. Reinstall MultiKey Drivers
Before you begin the installation, gather the following components and verify the status of your system.
Hypervisor-Protected Code Integrity is enabled by default on Windows 11. It blocks drivers that do not pass rigorous security checks or those that attempt to access protected memory spaces improperly. Tools like DSEO 1
With signature enforcement disabled, you can now install the driver. Unpack the Virtual USB Multikey package. Run the install.cmd or install.bat file as .
(Note: This specific GUID represents Universal Serial Bus controllers).
Is this for a (like HASP, Sentinel, or Hardlock)? Disabling it allows legacy virtual drivers to load
your PC. A "Test Mode" watermark will appear in the bottom-right corner, allowing the MultiKey driver to run. Step 3: Clear Registry UpperFilters and LowerFilters
Is this a with locked security policies, or a personal PC ?
The driver is a common tool used to emulate hardware dongles (like Sentinel HASP ) for software licensing. On Windows 11 , users frequently encounter Code 39 , which indicates that the driver cannot be loaded because it is corrupted, missing, or blocked by modern security features . Why Code 39 Occurs on Windows 11