On Windows, right-click the Starsector icon and select "Run as Administrator" to ensure the game has permission to save your activation status to your hard drive. To help me tailor any further assistance, tell me:

Kael looked at the activation code still glowing on his salvage slate. Θ-7-Ω-NULL-DREAM.

This comprehensive guide covers everything you need to know about acquiring, recovering, and troubleshooting your Starsector activation code. How to Get a Legitimate Starsector Activation Code 1. Purchase Directly from Fractal Softworks

This is one of the most frequently reported problems among Starsector players. Java updates — or system “cleaner” utilities that clear Java settings — can delete the registry entry where Starsector stores your activation code. After a Java update, you may be prompted to re-enter your key even though you’ve already activated the game.