Solidworks Host File Block Fix ✮

SolidWorks hangs on the "Loading Registry" or "Verifying License" splash screen for minutes before crashing.

Disclaimer: This article is for educational purposes and troubleshooting legitimate software installations only. Unauthorized modification of software licensing mechanisms violates federal copyright laws.

SolidWorks network licensing relies on specific ports to communicate through your network. If the hosts file is clear, the firewall might still be dropping the packets.

The is a surgical procedure. It is not about crushing the software's ability to phone home; it is about removing obsolete or malicious routing instructions that prevent legitimate communication.

Are you currently facing a specific (like -15,10,10061) when trying to connect to your SolidWorks license? solidworks host file block fix

Before editing, ensure your security suite is not actively blocking access to C:\Windows\System32\drivers\etc\hosts .

Example of a bad line to remove: 127.0.0.1 ://solidworks.com Delete these specific lines.

SolidWorks background processes (e.g., sldworks_fs.exe , SWLicensingService ) periodically check in with Dassault Systèmes’ activation servers. By editing the hosts file, you redirect those server names to a dead end (usually 127.0.0.1 – your own computer).

You are in the middle of a critical design review. The assembly is almost complete. Suddenly, SolidWorks freezes. You restart the software, but instead of the familiar splash screen, you are greeted with a yellow triangle and an ominous error message: SolidWorks hangs on the "Loading Registry" or "Verifying

If you recently transferred your license, try deactivating and reactivating .

If you want to dive deeper into troubleshooting, let me know:

Ensure the path is entered correctly using the format: 25734@your-server-name or 25734@your.server.ip.address . 3. Antivirus Whitelisting

Paste the following path into the address bar and press Enter: C:\Windows\System32\drivers\etc SolidWorks network licensing relies on specific ports to

Open Command Prompt and type:

The hosts file is a protected system file. You cannot edit it without administrative rights. Click the and type Notepad .

If you are working in a managed environment and these entries keep coming back, speak with your IT department, as security policies might be automatically modifying the hosts file. If you'd like, I can help you with specific steps for:

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