Download the installer directly from the NCH Software website . During installation, or upon first launch, look for the option that says "Use Free Version" (usually intended for home users).
When you see websites promising "100% working" or "exclusive" registration codes for DeskFX, they are typically offering one of two things: deskfx registration code free exclusive
You don’t actually need a "leaked" code to use the software. NCH Software offers a of DeskFX for non-commercial, home use. Download the installer directly from the NCH Software