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Note: This is a (to stop the pop-up), not a product key (to install/activate the full software). If you have lost the installation key, you must retrieve it from your account (see Section 3). 3. How to Find Your Original Serif Product Keys

: Sales of legacy products (like PagePlus X9) after May 14, 2018, were processed through the Affinity Store , and those keys are stored in your Affinity account rather than the legacy Serif database. Current Support Status Serif License Keys - Affinity | Forum

If you previously purchased legacy software and need your original product key for a reinstallation: Legacy Account Access : You can attempt to log into your Serif Legacy Account to view order history and keys Affinity | Forum Email History

Activating Serif Legacy with a product key is a straightforward process:

The of the Serif software you are using (e.g., PagePlus X9, PhotoPlus X8) The operating system on your current computer The exact error message you see during setup

When the registration dialog appears, select "Enter Registration Code" or "Already Registered." Enter the number: .

Your current PC is running slow. You decide to perform a clean Windows installation. You forgot to use a key extractor tool before wiping the drive. Now you own the software legally but cannot install it.

If your legacy product key is permanently lost, or if the software refuses to run smoothly on modern hardware, the best course of action is to transition to Serif’s modern ecosystem: . Legacy Software Modern Affinity Equivalent Core Benefits PagePlus Affinity Publisher

Users are advised to treat legacy Serif installations as fragile, immutable assets: maintain backups of the keys, the installers, and preferably a virtualized instance of the working software. The transition to Affinity has rendered these keys obsolete in terms of development, but they remain vital for accessing the digital archives of thousands of organizations worldwide.