Search the file for any lines containing "solidworks" or "activation".
: If a line begins with an IP followed by a SOLIDWORKS-related URL, delete that line or add a # at the start of it to "comment it out". solidworks host file block install
To resolve this, you must manually inspect and edit the hosts file to ensure no critical SOLIDWORKS addresses are restricted. 1. Open Notepad as Administrator Search the file for any lines containing "solidworks"
Standard users cannot save changes to system files. You must right-click in the Start menu and select Run as Administrator . 2. Locate the Hosts File solidworks host file block install
: You must change the file type filter in the bottom-right corner of the open dialog from "Text Documents ( .txt)" to **"All Files ( .*)"** to see the file named simply "hosts". 3. Edit and Clean the File
: If the hosts file contains entries that redirect SOLIDWORKS domains (like those for activation or updates) to an invalid IP like 0.0.0.0 or 127.0.0.1 , the installer cannot reach the required external servers.