Using cracked software is a civil violation of the End User License Agreement (EULA). While prosecution of an individual user is rare, it does happen. Furthermore, if you use a cracked serial key at work or on a business computer, the legal and financial liability to your employer can be substantial. The risk simply does not justify the reward.
If you prefer a paid tool like PC Helpsoft Driver Updater, buy a license from the official website. This ensures you receive safe, signed drivers and support. Serial Key Pc Helpsoft Driver Updater