Click Start , type Notepad , right-click the application, and select Run as Administrator .
With this guide, you can successfully block SolidWorks from reaching its activation servers while maintaining full functionality of the installed software. solidworks host file block fix
: Delete these lines or add a # at the beginning of the line to comment them out. Save the file and restart SOLIDWORKS. 3. Check Firewall Outbound Rules Click Start , type Notepad , right-click the
Ensure your Windows Firewall is not blocking sldworks.exe . right-click the application
If the above methods don't resolve the issue, try the following:
Paste the following path into the address bar and press Enter: C:\Windows\System32\drivers\etc
💡 Add a comment line above to remind yourself why you did this: # SolidWorks block list - added March 2026
