Microsoft says it is now sending computer makers the final programming code for Windows 7, its new operating system.
That indicates Windows 7 is on track to go on sale as expected on Oct. 22. It will come with new PCs from then on, and will be available for people to buy separately and install on their existing machines.
Microsoft says Windows 7 will be easier to use. The company also promises that switching to it will be smoother than the transition to the previous version, Vista.