Error 39 is a Windows kernel-level PnP (Plug and Play) error. It doesn't mean "license expired." It means: Windows sees a device (virtual or physical), loads a driver, but the driver tells the OS, "I can't start. Something is wrong with the hardware or its configuration."
Look for or System devices .
Legacy Mastercam versions (like X7) use older Virtual USB MultiKey drivers that are often flagged as unsigned or incompatible by newer Windows updates. Step-by-Step Fixes 1. Disable Core Isolation (Most Effective) mastercam+x72022+virtual+usb+bus+error+39+fixed