Using a keygen is software piracy. Companies like MiniTool have automated bots that scan forums for leaked keys and blacklist them. If you use a blacklisted key, the software reverts to "Free" in the middle of a critical disk conversion—potentially corrupting your data.
If the MiniTool Free version restricts a feature you need (like migrating OS to SSD), you might check out (completely open-source) or AOMEI Partition Assistant , which sometimes offer different features in their free tiers. minitool partition wizard free license key better
But for a home user who simply needs to resize partitions or migrate to an SSD once a year? Using a keygen is software piracy