Solidworks Host File Block Install ^new^ -

The Windows hosts file is located at: C:\Windows\System32\drivers\etc\hosts 2. Open Notepad as Administrator Click the menu and type "Notepad".

Aggressive local firewalls can block the SolidWorks Installation Manager independently of the Hosts file. Temporarily disable your real-time antivirus protection and Windows Defender Firewall during the installation phase.

: If SOLIDWORKS is unable to connect for activation, a new outbound rule may need to be created in the Windows Firewall to "Allow the connection" for the specific program executable. solidworks host file block install

Right-click on the Notepad application and select .

Scroll to the bottom of the file, past any lines starting with # . Add a new line for each address you want to block. : [IP Address] [Hostname] Scroll to the bottom of the file, past

The Windows Hosts file is a plain-text file that maps hostnames to IP addresses. It acts as a local "phone book" that the operating system consults before reaching out to external Domain Name System (DNS) servers. In the context of a SOLIDWORKS installation, this file can be used to:

: While often caused by blocked HTML files from a zip extraction, a blank screen can also indicate the installer is stuck waiting for a connection that the hosts file is blocking. Connection Timeouts 4. Troubleshooting SOLIDWORKS Installation Issues

In managed corporate environments, ask your IT administrator to whitelist the *.solidworks.com domain wildcard in the corporate proxy or hardware firewall rather than editing local host files manually.

Blocking SolidWorks' access to its activation and telemetry servers is a precise process that requires administrative privileges.

: Navigate to C:\Windows\System32\drivers\etc\ .

If the block is active, the response should show it trying to connect to 127.0.0.1 or 0.0.0.0 . 4. Troubleshooting SOLIDWORKS Installation Issues