Mastercam Virtual Usb Multikey Not Working -

Press Windows Key + X and select Command Prompt (Admin) or PowerShell (Admin).
Type the following command and hit Enter: bcdedit /set testsigning on
Restart your computer. You will notice a "Test Mode" watermark on your desktop bottom right corner. This is normal.

If your driver is not functioning properly for Mastercam, you’ll likely see errors like:

If you see an exclamation mark in under "Universal Serial Bus Controllers" or "Other Devices": mastercam virtual usb multikey not working