If a paid license isn't in your budget right now, there are reputable open-source or free alternatives that don’t require you to hunt for shady serial keys:

The developers offer a trial version that allows you to scan your system and see exactly how much space you can save before committing to a purchase.

– The key is emailed to you instantly or shown on a confirmation page. Do not share this key publicly—it’s tied to your email address.

Do not waste time searching for illegal serial keys. The risk of infecting your computer with a virus far outweighs the cost of the software. If you need to clear space immediately, purchase the license officially. If the price is a barrier, consider using a free alternative like dupeGuru or WizTree , rather than risking your system security with a pirated serial.