The software operates on a "freemium" model. The scanning functionality is typically free, but to "fix" the detected errors, the user must purchase a license and enter an activation key. This gatekeeping creates the demand for "new activation keys" to bypass payment.

If you value open‑source software and deep privacy controls, BleachBit is an excellent choice. It wipes cache, cookies, logs, and other digital crumbs, and can even shred files to prevent recovery. Like CCleaner, it is completely free.

: Open your order confirmation email, highlight your 25-digit activation key, and press CTRL + C .

For reference, the legitimate software is a registry cleaner and PC optimizer created by Solvusoft Corporation . It claims to find and fix hundreds of invalid references in the Windows registry to boost system speed.

Toggle to "On" to let Windows automatically free up space.

WinThruster is advertised as a tool to speed up your PC by repairing registry errors, many security experts and technical communities advise against using it. It is frequently classified as a Potentially Unwanted Program (PUP) or "digital snake oil". PCrisk.com Summary of Performance & Safety Safety Concerns : Security platforms like Malwarebytes