If you previously had a different version or a trial installed, old Dynamic Link Libraries (DLLs) in the license server directory can block new initializations.
If your installation has ground to a halt due to this error, you are not alone. This comprehensive guide explains what causes Error 6 on Windows 11 and provides actionable, step-by-step solutions to resolve it. Understanding "Error 6" in SolidWorks Activator
Features like Memory Integrity prevent unauthorized drivers or scripts from injecting licensing hooks into system memory.
: Changes in Visual Basic for Applications (VBA 7.1) in newer Windows versions can cause older installers to fail during component registration. Troubleshooting & Solutions Cannot install SW2017 on a Windows 11 laptop : r/SolidWorks error 6 solidworks activator windows 11
Locate your SolidWorks Activator execution file (usually a .exe or .bat file). Right-click the file and select . Navigate to the Compatibility tab. Check the box for Run this program as an administrator .
“Invalid procedure call or argument” – often caused by , antivirus interference , or corrupted activation files .
If the error explicitly mentions a registry failure, you must grant your user profile full ownership of the SolidWorks registry keys. If you previously had a different version or
The transition to Windows 11 introduced stricter security protocols and architectural changes that often break legacy activators designed for Windows 10 or older versions.
Core Isolation, Memory Integrity, or Windows Defender blocking the licensing modules.
Windows 11 features strict user account controls that can prevent SOLIDWORKS from writing license files to the system drive. Close SOLIDWORKS completely. Right-click the file and select
After completing the steps, verify the activation.
If the error persists after a clean install, a registry reset may clear corrupted settings.
Click the , type Windows Security , and press Enter. Go to Virus & threat protection .
Now, with the environment prepared, it's time to run the activator. Remember, the exact steps vary by activator, but the following principles apply universally.
To avoid encountering Error 6 again in the future, here are some best practices: