If you have determined that ApowerRecover is the right tool for your needs, the safest route is to purchase a legitimate license.

This is the most dangerous. "Keygens" (Key Generators) for software like Apowerrecover are almost universally Trojan horses.

Typically allows you to and preview lost data for free, but requires a license to actually save the recovered files. Safety

An open-source, powerful (though text-based) recovery utility.