Quick Driver Updater is proprietary software. Using a license key that you did not purchase is a violation of the software's End User License Agreement (EULA) and constitutes software piracy. Beyond the legal aspect, using cracked software undermines the developers who maintain the driver databases to ensure your hardware works correctly.
Those "free key" files often contain malware like CryptBot , which is designed to steal browser credentials and cookies once you give it Administrative rights. Quick Driver Updater License Key Free LINK