Run the installer as administrator. Do not disable your antivirus.

Pirated software frequently crashes and can corrupt more of your photos.

Most sites offering "free keys" bundle their downloads with Trojans, ransomware, or spyware. You might save a photo but lose your entire OS.

The free trial of Stellar Repair for Photo allows you to scan, preview, and diagnose corrupted photos. It shows you exactly which files are repairable. The only limitation is that to the repaired photos, you need to activate. This is fair software design, not a restriction to be cracked.

Look for the Key icon or the Activation button in the top menu.