Appendix A – Quick Command Script (run as admin to reset HASP driver)
net stop hardlock
sc delete hardlock
del /f C:\Windows\System32\drivers\hardlock.sys
"C:\Program Files (x86)\Mastercam License Manager\uninstall.exe" /quiet
msiexec /i "C:\Path\to\LatestLicenseManager.msi" /qn
Appendix B – Recommended Driver Versions Mastercam X7-2022 Virtual Usb Bus Error
If the driver exists but has a yellow flag: Appendix A – Quick Command Script (run as
Do not use the standard uninstaller. Use the HASP (Hardlock) Removal Tool. Appendix B – Recommended Driver Versions
Users of Mastercam versions X7 through 2022 have reported persistent Virtual USB Bus errors where the HASP key is not recognized, or Windows Device Manager shows an error (commonly Code 10 or Code 39) for a “Virtual USB Bus” device. This error typically occurs after Windows updates, driver conflicts, or improper installation of the HASP/License Manager. The issue prevents Mastercam from launching or operating in licensed mode. This report outlines causes, diagnostic steps, and proven solutions.