If you are cleaning up an environment after removing an old license, ensure that leftover registry keys under HKEY_LOCAL_MACHINE\SOFTWARE\SolidWorks and folder directories in C:\ProgramData\SolidWorks are safely backed up and removed. This ensures the new installer creates a completely fresh, uncorrupted identity. I can provide more targeted steps if you tell me: What or code is showing on the screen?
followed by the domain you wish to block, according to MasterDC's advice on hosts file editing . Example: 0.0.0.0 activate.solidworks.com Save the file and close Notepad. solidworks host file block install
Scroll to the bottom of the file. You will likely see a line that says # 127.0.0.1 localhost . On a new line below this, you will enter the domains you want to block. Each entry follows the format: [IP Address] [Domain Name] . If you are cleaning up an environment after
you are using (Standalone, Network, or Student). Whether you are connected to a domain network. followed by the domain you wish to block,
Outdated root certificates in older Windows builds can prevent your system from establishing secure handshakes with modern SolidWorks authentication servers.
To unblock your SolidWorks installation, you must audit the Windows hosts file and remove any lines targeting SolidWorks or Dassault Systèmes domains. Step 1: Open Notepad as an Administrator
A full restart is not always required. The quickest way to apply your changes is to open the Command Prompt as an administrator and run the command ipconfig /flushdns . This clears the DNS cache and forces your system to read the updated Hosts file.
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