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Ensure you haven't copied a "space" at the beginning or end of the code.
To use the advanced features of DHU—such as the "Fix" or "Reinstall" functions—the software requires a license. Here is how the system typically works: Directx Happy Uninstall User Id Registration Code
Some users report that the software "loses" its registration record after a PC restart or after a few days, requiring the User ID and Activation Code to be re-entered. Ensure you haven't copied a "space" at the