: Re-enter your authorization code and complete the wizard. Restart SPSS. University of Wisconsin–Madison 2. Reset the License File (Mac & Windows)

Temporarily disable your antivirus or firewall for two minutes while you run the License Authorization Wizard.

These approaches ignore the identity mismatch central to subcode 18.

If these steps don't work, verify that your IBM License Key Center code is still active and hasn't expired. Fixing IBM SPSS License Activation Issue - FAQ - JustAnswer

The error code 1 and subcode 18 specifically relate to the inability of the software to find a valid license. This can be caused by:

The "No licenses found" error in IBM SPSS Statistics 29 typically occurs when the software is unable to detect a valid license. This can happen for a variety of reasons, including:

The software is trying to write a small license file (called lservrc ) into its own installation folder. Even if you have a valid code, the often appears because your current user account doesn't have the "authority" to save that file there. How to Fix It (The "Better" Way) On Windows

The lservrc file is the source of the subcode 18 error. Deleting it forces SPSS to forget the broken hash.

The software is looking at the wrong hardware identifier (Lock Code), causing a mismatch between the generated license and your machine. Step-by-Step Fixes for Windows

✅ After successful license installation, you should see "Licensed to [user/org]" in the SPSS splash screen.