What is driver booster 9 key?

Unfortunately, as an AI language model, I do not have access to specific product keys or license information. However, I can tell you that Driver Booster 9 is a popular software program developed by IObit that aims to improve PC performance by updating and optimizing device drivers. It can scan and detect outdated, missing or faulty drivers and automatically download and install the latest versions to ensure hardware components are functioning at their best. Driver Booster 9 includes features such as a free driver updater, game boost, audio boost, and system restore. It is compatible with Windows 10, 8.1, 8, 7, Vista, and XP.