Check the box that says and click Uninstall . Step 4: Clean the Windows Registry
Once your Mastercam virtual USB driver is working correctly, consider these preventive measures:
Right-click the and select Command Prompt (Admin) or Terminal (Admin) . Copy and paste the following command, then press Enter: bcdedit /set nointegritychecks on Use code with caution. Next, type this command and press Enter: bcdedit /set testsigning on Use code with caution.
Look for or LowerFilters in the right-hand panel. Right-click them and select Delete . Do not delete anything else in this folder. Restart your computer. Step 4: Reinstall SafeNet HASP Drivers
(Delete the same files if found).
Error 39 indicates that Windows cannot load the driver for this hardware because the driver may be corrupted or missing. This is frequently caused by Windows updates breaking older licensing drivers, especially when moving between Windows 10 and Windows 11.
Navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceGuard\Scenarios\HypervisorEnforcedCodeIntegrity . Set the value to 0 . Restart your system. Additional Troubleshooting Steps Mastercam X7-2022 Virtual Usb Bus Error 39 - Google Groups
If the driver was uninstalled but the error remains, corrupt registry entries might be blocking it. Press Win + R , type regedit , and hit Enter.
Remove existing runtime components by typing: haspdinst.exe -purge
Mastercam relies on a hardware driver or software emulator to verify its license. When updating Mastercam or modifying your Windows environment, you may encounter a system alert stating that the .
Arjun saved the registry fix as a .reg file and named it: NoMoreGhosts.reg