Microsoft said the rollout of Windows 10 as a recommended update will happen in phases starting Monday. Users who have their computers set to automatically download and install recommended updates will start to see an installer for the new operating system pop up prompting them to upgrade their computer.
Although the Windows 10 updater will automatically download to those computers, users will have the final say on whether they want to actually upgrade their machine to the new operating system. People who update to Windows 10 and end up disliking it can roll back to their previous OS up to 31 days after the upgrade.
The rollout was a long time coming. Microsoft announced the plan to release Windows 10 as a recommended update in October, saying the push would happen in "early 2016." The move shows how confident Microsoft is in the stability of its new operating system, since it's willing to put the update in front of people who aren't rushing out to get it.
Helping users get a hold of the upgrade is also useful for ensuring that as many people as possible take Microsoft up on the offer to upgrade computers running Windows 7 and 8.1 for free. The company has said that opportunity will expire in July of this year.