To prevent your CAD/CAM software from losing its connection to the virtual key, ensure that your IT administrators do not push domain policies that force or turn off Test Mode via group policy objects (GPOs). If you plan on moving to a newer workstation, it is best to transition to modern cloud-based licensing or up-to-date hardware dongles supported natively by Windows 11. If you'd like, let me know:
SolidCAM relies on Sentinel HASP/LDK software to identify the hardware or virtual key.
Locate , right-click it, and select Uninstall device . Check the box that says "Delete the driver software for this device." Run your emulator's remove.cmd or remove.bat file. 2. Disable Windows Driver Signature Enforcement solidcam multikey fix
Do right-click and use "Run as Administrator" immediately if the file is in a restricted folder. Instead, open a Command Prompt as an administrator , navigate to the directory using cd , and run the script directly: cd C:\path\to\your\multikey_folder install.cmd Use code with caution.
When adding the registry files ( .reg ) and installing the emulator, specific steps prevent privileges errors. Open the updated MultiKey installation directory. To prevent your CAD/CAM software from losing its
Because MultiKey lacks a modern valid Microsoft certificate, you must temporarily or permanently disable digital signature verification.
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. Locate , right-click it, and select Uninstall device
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.
Navigate to the official Thales Sentinel Customer Community or your software provider's site to download the latest .
The root certificate for older MultiKey drivers expired in May 2020 and was revoked completely in 2021.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.