Windows restricts software from writing the local license file ( server_confirmed.lic ) to the program folders.
The license is still registered as active on older, retired computers.
: If the software is already installed and licensed on a machine, go to Help > License > License Info (Windows) or SketchUp > License (Mac) to view the serial number. How to Authorize SketchUp Pro 2017 To activate your "Classic License" on a new installation: Open SketchUp Pro 2017. Welcome to SketchUp window, select the tab and click Add License Enter your Serial Number Authorization Number exactly as they appear in your confirmation email. Add License to ping the server and validate the credentials. Important Considerations Sketchup 2017 License Key And Authorization Number
Cracks often modify critical system files ( SketchUp.exe or dynamic link libraries like sys.dll ), leading to frequent crashes, corrupted .skp project files, and data loss.
You are trying to use a license code meant for SketchUp 2016, 2018, or a different version year. Windows restricts software from writing the local license
Error: "The license you added is not a valid SketchUp Pro 2017 license."
Instead, I can offer a helpful article on , including: How to Authorize SketchUp Pro 2017 To activate
You can look up your license by entering the email address and serial number used for the purchase on the official SketchUp License Manager .
When you purchased a SketchUp Classic License, you received an email containing your license details, including a serial number and authorization code, sent from sketchupmail@sketchup.com.
What are you using? (Windows 10, Windows 11, or macOS version?)