In RF engineering, trust is everything. When you use a cracked executable, you are running code that has been modified by an unknown third party.

If you're dealing with a crack, either in the microwave's exterior, interior, or perhaps a component like a turntable or door, safety should be your top priority. Cracks can lead to electrical safety hazards, especially if you're dealing with a microwave, which involves high voltage components even when turned off.