Ensure you have a stable internet connection. Sometimes, simply restarting your router or switching to a different network can resolve connectivity issues.
Last updated: May 2026
Even if you are an admin on your PC, Windows requires explicit "Run as Administrator" for tools that modify system-level license servers. Without it, the activator fails to write to C:\Windows\System32\drivers\etc\hosts or stop the SolidWorks Licensing Service. solidworks 2018 activator ssq error 6 new
Click on and choose Force Local Activation Serial Numbers from the dropdown menu. Click Accept .
If you’ve encountered the dreaded while trying to activate SolidWorks 2018 using the SSQ activator, you’re not alone. This frustrating error often appears just when you think the installation is complete, leaving you unable to access the software. Ensure you have a stable internet connection
The SolidWorks 2018 activator SSQ error 6 can be frustrating, but it can be resolved by following the solutions outlined above. By verifying the product key, reinstalling SolidWorks 2018, disabling firewall and antivirus software, updating the SolidWorks Activator tool, and running it as an administrator, users can resolve the error and successfully activate their SolidWorks 2018 software.
The SSQ Error 6 is an activation error that occurs when trying to activate SOLIDWORKS 2018 using the SSQ ( SolidWorks Serial Number) activator. The error message typically reads: "Error 6: The handle is invalid." This error can occur due to various reasons, including issues with the activator, corrupted system files, or problems with the SOLIDWORKS installation. Without it, the activator fails to write to
Move the entire _SolidSQUAD_ folder directly into the root directory of your main drive (e.g., C:\_SolidSQUAD_ ). Right-click SolidWorks.2017-2018.Activator.SSQ.exe . Select . 3. Execute the Sequence in Strict Order
Reinstall a stable version of Windows 10 Pro. Activate: Perform the activation process on Windows 10.
If Error 6 pops up halfway through your installation, it means the registry keys were written out of order. You must clear the queue: Open the Activator tool as an administrator.
Even with security software disabled, the activator needs to write license files and registry entries.