If your installation still fails or acts unexpectedly, you may need to your installation or manage the hosts file permissions. Preventing Hosts File Alteration
By default, Notepad only looks for .txt files. In the bottom-right corner of the Open dialog box, change the dropdown menu from to All Files ( . ) . solidworks host file block install
How to Properly Edit the Hosts File (For Valid Technical Issues) If your installation still fails or acts unexpectedly,
For installing SOLIDWORKS, this feature is often used in two primary scenarios: solidworks host file block install
On machines with strict firewalls, the installer may hang trying to verify credentials. Blocking the check can allow the local install process to complete.