Error 6 in the SolidWorks activator on Windows 11 typically indicates a registry write failure or a compatibility mismatch between older software versions and the newer operating system. This error frequently occurs when attempting to activate versions of SolidWorks older than 2021 (such as 2017 or 2018) which are not officially supported on Windows 11. Core Causes of Error 6
Rename the folders inside by adding
_oldto their names (e.g.,SolidWorks_old). error 6 solidworks activator windows 11Disable Core Isolation (if enabled):
Step 3: Terminate Background Processes
Ensure all SolidWorks processes are closed before running the tool. Error 6 in the SolidWorks activator on Windows