Artificial Intelligence (AI) is a branch of computer science that focuses on creating systems and machines that can perform tasks that typically require human intelligence. AI aims to develop algorithms, software, and hardware that can mimic various aspects of human cognition, such as problem-solving, learning, reasoning, perception, and language understanding.

Microsoft's virtual assistant, Cortana, was initially designed to integrate AI into the Windows experience. It could help users with tasks, answer questions, and provide personalized recommendations.

AI-driven search capabilities within Windows enabled users to find files, applications, and settings more efficiently. Additionally, AI algorithms made recommendations for software, apps, and settings based on user behavior. AI was used for improving security. Windows Defender, the built-in antivirus software, used AI to detect and prevent malware and other security threats. Behavioral analysis and machine learning were applied to identify suspicious activities. AI helped in optimizing the installation of updates and maintenance tasks. It could identify the best times to install updates, reducing interruptions for users. AI algorithms worked to optimize power consumption on laptops and mobile devices by regulating background processes and managing power-hungry apps more efficiently. Windows Hello, the facial recognition and fingerprint authentication system, used AI for more accurate and secure biometric recognition. AI-powered features improved accessibility for users with disabilities. For example, AI-driven speech recognition and text-to-speech capabilities helped those with visual or hearing impairments.

Microsoft Office applications, such as Word and Excel, integrated AI to assist with tasks like grammar and spell checking, and even provide smart suggestions for content creation. Microsoft collected telemetry data from users to improve the user experience, troubleshoot issues, and optimize Windows performance. AI was used to process and analyze this data. AI technologies improved natural language processing in Windows. Users could dictate text, and Windows would convert it into written content more accurately.

It's worth noting that Microsoft was continually evolving its use of AI in Windows, and the extent of AI integration and its specific features might have expanded further since my last update. If you're interested in the most up-to-date information, I recommend checking Microsoft's official sources and documentation or the latest news on AI integration into Windows.