Activation
Run the installer and let it start. Without a licence it runs as the free tier, so you can set up your drives before entering a key. It sits in the system tray and starts with Windows.
Open GameHydra and go to Settings. That is where your tier is shown and where the licence key goes.
Your key arrived by email right after purchase, and is listed in your account here. Case does not matter and the dashes are optional — paste it however you have it.
GH-4T8KM-9WQZR-2XBVC-H7NP3Click Activate. GameHydra registers this PC against your licence and stores a signed activation token. The paid features unlock straight away: automatic sorting, unlimited included drives, and cold-storage compression.
Activation needs an internet connection. GameHydra then re-checks about every two weeks; in between it works fully offline.
Working offline
Troubleshooting
Support is handled by email — there is no ticket portal and you do not need an account to write in. Include your licence key and the version from Settings → About, and the first reply will be a fix rather than a question.