If the error explicitly mentions a registry failure, you must grant your user profile full ownership of the SolidWorks registry keys.
Navigate to: HKEY_LOCAL_MACHINE\SOFTWARE\SolidWorks (and HKEY_CURRENT_USER\SOFTWARE\SolidWorks ). Right-click the folder and select Permissions . Click Advanced .
If the simple fixes don't work, the issue may be deeper in the system's licensing files: :
Look for the note at the bottom of the General tab. Check the Unblock box. Click Apply and then OK . Long-Term Prevention Tips error 6 solidworks activator windows 11
At its core, Error 6 is often an or "Access Violation" error. It essentially means the activation tool (the "activator") is trying to write licensing data to your system's registry or protected folders and is being blocked by Windows 11’s enhanced security protocols. Common Causes on Windows 11
files from the license server directory before re-running the installation. 3. Support Resources Cannot install SW2017 on a Windows 11 laptop : r/SolidWorks
If the activator failed halfway through, the FlexNet service might be stuck in a glitched state. Press Windows Key + R , type services.msc , and press . If the error explicitly mentions a registry failure,
Check the box that says . Click Apply and then OK . Right-click the file again and choose Run as administrator .
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Add your SolidWorks installation path and license folder to your antivirus exclusion list. Click Advanced
: Always use the official SolidWorks Uninstaller and wipe residual folders in C:\Program Files before reinstalling.
: Run the activator again. Remember to turn protection back on afterward. 3. Fix "Access Violation" Registry Issues
: Find the SolidWorks.Activator.exe file (often in the _SolidSQUAD_ folder).
: Windows Defender or third-party antivirus software may flag activator files (like those from SolidSquad) as potential threats and block their execution. VBA Conflicts