In reality, there is no "secret" better key. Fortect operates on a subscription model to fund its database of fresh Windows replacement files.
Open Command Prompt as Administrator and run these three commands (one at a time): fortect+free+better+license+key
Great at fixing specific Windows OS crashes (like Blue Screens of Death), removing junk files, resolving registry issues, and detecting Potentially Unwanted Programs (PUPs). What it lacks: Unlocking Peak Performance: The Truth About Fortect, Free
Start with the official Fortect download to run a free scan. removing junk files