Temporarily disable aggressive third-party antivirus suites for the duration of the installation process. Re-enable them immediately after the software activates.
If you manage a (on a dedicated server), the process changes slightly.
A blocked line typically looks like this: 127.0.0.1 ://solidworks.com
127.0.0.1 updates.solidworks.com
The hosts file is used by Windows to map specific hostnames to IP addresses. Sometimes, security software or previous manual edits add entries that "blackhole" (redirect to 127.0.0.1 ) SOLIDWORKS licensing or update domains, preventing the installer from verifying your serial number. How to Fix It:
Here’s how to do it:
The "solidworks host file block install" technique is a powerful yet often misunderstood tool. When used correctly, it can be a legitimate method for troubleshooting network issues, particularly with PDM or network license servers. However, its most common use cases are often associated with risky, illegal activities. Always prioritize using a legitimate SOLIDWORKS license and deploying a robust firewall for network control. This guide provides the knowledge to use the Hosts file effectively and safely, enabling you to diagnose issues confidently while understanding and respecting the legal boundaries of the software's license agreement.
Click > Save (or press Ctrl + S ). If Windows asks you to save it as a new text document, Notepad was not launched with true administrator permissions. Close Notepad.
: Sometimes, organizational firewalls or proxy settings interfere with the SOLIDWORKS Installation Manager's ability to verify serial numbers or download files. Adding specific block or redirect rules can occasionally stabilize these connections. Why Block or Redirect During Install?
Change the file type dropdown (bottom right) from "Text Documents ( .txt)" to **"All Files ( .*)"**. Select the file and click Open . 4. Edit and Block SOLIDWORKS Sites
By following this guide, you take back control of your licensing stability. Remember: With great power comes great responsibility. Use the block wisely, keep your licenses legal, and your engineering workflow will remain uninterrupted for years to come.
(Note: Replace the example domains above with the exact external URLs or update server addresses you want to block within your specific deployment environment. Always use a single tab or spaces between the IP address and the domain name.) 5. Save and Close Click > Save (or press Ctrl + S ). Close the Notepad window. Alternative: Using Windows Defender Firewall
Temporarily disable aggressive third-party antivirus suites for the duration of the installation process. Re-enable them immediately after the software activates.
If you manage a (on a dedicated server), the process changes slightly.
A blocked line typically looks like this: 127.0.0.1 ://solidworks.com
127.0.0.1 updates.solidworks.com
The hosts file is used by Windows to map specific hostnames to IP addresses. Sometimes, security software or previous manual edits add entries that "blackhole" (redirect to 127.0.0.1 ) SOLIDWORKS licensing or update domains, preventing the installer from verifying your serial number. How to Fix It:
Here’s how to do it:
The "solidworks host file block install" technique is a powerful yet often misunderstood tool. When used correctly, it can be a legitimate method for troubleshooting network issues, particularly with PDM or network license servers. However, its most common use cases are often associated with risky, illegal activities. Always prioritize using a legitimate SOLIDWORKS license and deploying a robust firewall for network control. This guide provides the knowledge to use the Hosts file effectively and safely, enabling you to diagnose issues confidently while understanding and respecting the legal boundaries of the software's license agreement. solidworks host file block install
Click > Save (or press Ctrl + S ). If Windows asks you to save it as a new text document, Notepad was not launched with true administrator permissions. Close Notepad.
: Sometimes, organizational firewalls or proxy settings interfere with the SOLIDWORKS Installation Manager's ability to verify serial numbers or download files. Adding specific block or redirect rules can occasionally stabilize these connections. Why Block or Redirect During Install?
Change the file type dropdown (bottom right) from "Text Documents ( .txt)" to **"All Files ( .*)"**. Select the file and click Open . 4. Edit and Block SOLIDWORKS Sites A blocked line typically looks like this: 127
By following this guide, you take back control of your licensing stability. Remember: With great power comes great responsibility. Use the block wisely, keep your licenses legal, and your engineering workflow will remain uninterrupted for years to come.
(Note: Replace the example domains above with the exact external URLs or update server addresses you want to block within your specific deployment environment. Always use a single tab or spaces between the IP address and the domain name.) 5. Save and Close Click > Save (or press Ctrl + S ). Close the Notepad window. Alternative: Using Windows Defender Firewall