New Delhi, Oct. 16 -- As Microsoft bids adieu to Windows 10 and the wait for Windows 12 reached its pinnacle, the Redmond-based tech giant has given its current operating system a major AI push. Microsoft is more deeply integrating its Copilot AI assistant at the center of the Windows experience, which the company claims means every Windows 11 PC will become an AI PC.

​Microsoft is making Copilot more conversational, in line with other voice assistants like Google Assistant, Alexa, or Siri. As you summon any of these assistants with a hotword, you'll now be able to do the same with Copilot. No prizes for guessing the hotword: it's "Hey Copilot."

​The new voice feature for Copilot is opt-in, meaning users would need to enable...