Before applying a fix, you must clean out old registry entries and active drivers to prevent installation conflicts. Press Win + X and open . Expand the Universal Serial Bus controllers section.
The root certificate for older MultiKey drivers expired in May 2020 and was revoked completely in 2021. Windows marks the driver as a security risk, leading to Error Code 39 or Code 52 in the Device Manager.
Navigate to the official Thales Sentinel Customer Community or your software provider's site to download the latest . solidcam multikey fix
Click on and navigate to Core isolation details . Toggle the switch for Memory integrity to Off . Restart the PC. Troubleshooting Common MultiKey Errors Error Code / Message Primary Cause Immediate Fix Error Code 39 Invalid or revoked digital certificate. Enable Windows Test Mode using bcdedit /set testsigning on . Error Code 7 / -3 Broken driver communication. Update Sentinel HASP runtimes to the newest version. SolidCAM: No license found Registry files were not merged correctly. Re-run the .reg registration file and restart the computer. Yellow Triangle in Device Manager Leftover old emulator instances.
Your version (e.g., Windows 11 23H2 or 24H2) Before applying a fix, you must clean out
Double-click your specific .reg registry file (e.g., SolidCAM.reg ) to merge it into the Windows registry. Locate install.cmd (or install.bat ).
The "SolidCAM MultiKey Fix" resolves the "No License Found" or "Virtual USB MultiKey Error Code 39" that occurs on Windows 10 and Windows 11. This error usually triggers because modern Windows security policies block unsigned or expired drivers, or due to outdated Sentinel HASP files. Why the MultiKey Driver Fails on Windows 10 & 11 The root certificate for older MultiKey drivers expired
Follow these steps sequentially to cleanly remove the broken driver, bypass driver enforcement, and install the corrected MultiKey driver.
When adding the registry files ( .reg ) and installing the emulator, specific steps prevent privileges errors. Open the updated MultiKey installation directory.