The Microsoft Windows 10 OS could soon be a billion dollar business, analysts say.

The company has been preparing to launch Windows 10 as a cloud-based operating system since 2014, and it’s been a major focus for Microsoft over the past few years.

Microsoft is targeting a launch in 2020, when Windows 10 is expected to be available on nearly every Windows 10 device.

While analysts have predicted the OS will take a “soft launch” of a few months, Microsoft is already working to push the OS onto as many as a half billion devices, according to a Wall Street Journal report last year.

Windows 10 has been in the works for some time, but the rollout of the OS has been slow.

According to the WSJ, Microsoft had been working on the OS since the early 1990s, and there are at least 20 pieces of software that were originally designed for the operating system.

Some of those pieces of code are still in use, including Windows Defender, Microsoft Security Essentials, and a program called Windows Defender Advanced Threat Protection.

In the same report, the WSJD reported that Microsoft has been working to upgrade the Windows Defender suite to support Windows 10, and to update the Windows 10 operating system with features that have yet to be made available to Windows 8 and Windows 8.1.

Despite the slow pace of Windows 10’s launch, it could be quite a success.

As WSJ points out, the company expects to hit a billion devices by 2020, which would give Microsoft the third-biggest market for a single operating system in the world.