Click and ensure your user account has "Write" permissions restricted if necessary. Repairing the Installation
Windows caches previous DNS lookups. Even if you edit the hosts file, Windows might remember the real IP address for im.solidworks.com and ignore your changes if you don't flush the cache. Press Win + R , type cmd , and press Ctrl + Shift + Enter to open an elevated Command Prompt. Type ipconfig /flushdns and press Enter. solidworks host file block install