Error 6 Solidworks Activator Windows 11 Jun 2026

:A common "clean slate" method involves navigating to C:\ProgramData\FLEXnet and deleting (or renaming) files starting with SW_D . This forces the software to re-verify the activation upon the next launch.

"Error 6" is a common issue encountered when attempting to run or activate older, non-supported versions of SOLIDWORKS (such as 2017 or 2018) on Windows 11

Encountering "Error 6" when activating SOLIDWORKS on Windows 11 is a common challenge, but it's not insurmountable. By systematically working through the steps—preparing your system, configuring compatibility settings, and running the activator correctly—you can resolve the issue.

Stricter UAC settings on Windows 11 can silently terminate script actions without showing a prompt, leading to an abrupt Error 6. error 6 solidworks activator windows 11

: Under Virus & threat protection settings , click Manage settings .

The activator does not have administrative rights to write to the registry or create service files.

If it is missing, you must re-run the sw_setup.exe and choose "Repair" to reinstall the licensing component. :A common "clean slate" method involves navigating to

Click on the button at the bottom right.

: In the activator window, click on the Extensions or Additional Actions tab (depending on the version).

On Windows 11, this problem is frequently caused by stricter security measures, such as User Account Control (UAC), real-time antivirus protection, or compatibility issues with the FLEXnet license manager. The activator does not have administrative rights to

Locate the activation file (usually a .bat , .cmd , or .exe file). Right-click the file and select . Go to the Compatibility tab. Check the box next to Run this program as an administrator . Click Apply and then OK .

Check the box that says . Click Apply and then OK . Right-click the file again and choose Run as administrator .

Residual files from previous SolidWorks installations can block the new license server from binding to the local port. Step-by-Step Solutions to Resolve Error 6