It is not worth your system security or personal data.
1/10 – High probability of malware. Even if the crack “works,” you are trusting an anonymous pirate with executable code. It is not worth your system security or personal data
Avoid. If you cannot pay for Adobe, use Darktable or RawTherapee – both are free, open-source, safe, and more powerful than Lightroom 5.4. If you need Lightroom’s exact workflow, consider the legitimate Adobe Photography Plan ($9.99/month) which includes Lightroom Classic, Lightroom CC, and Photoshop. It is not worth your system security or personal data