Driver Booster 6.4 Pro Crack refers to a pirated version of the Driver Booster 6.4 Pro software, which is used to update and manage drivers on your computer. Using cracked software is risky as it often comes with malware or security vulnerabilities that can compromise your system. Moreover, using such software is illegal and could lead to legal issues or other penalties. It is always recommended to use legitimate versions to ensure your system’s safety and compliance with the law.