When absolutely nothing works, run Mastercam inside a dedicated Windows 10 LTSC virtual machine with USB passthrough.
Navigate to the following path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceGuard\Scenarios\HypervisorEnforcedCodeIntegrity Find the value on the right pane. Right-click it, select Modify , and set the Value Data to 0 . Restart your PC . 3. Clear Registry Filters (UpperFilters and LowerFilters) How to Fix USB Error Code 39 In Windows 10/8/7 [Tutorial] mastercam x72022 virtual usb bus error 39 fix
: Open regedit and navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceGuard\Scenarios\HypervisorEnforcedCodeIntegrity . Set the Enabled value to 0 and restart. When absolutely nothing works, run Mastercam inside a
If the error persists, proceed.