According to the latest report from Petri, citing unnamed insider sources, Windows 10 has surpassed 100 million installations in its first two months on the market; a significant milestone for Microsoft and the new operating system.

The rise to 100 million installs has been reasonably quick, with the OS achieving 14 million installs in the first 24 hours, 53 million installs in just over two weeks, and 75 million installs in less than a month. The reception from the general public has been far better for Windows 10 than Windows 8.1, which has helped Microsoft achieve so many installs in such a short time.

The other aspect of Windows 10 that has led to a quick rise is its free upgrade path for users coming from Windows 7 and Windows 8.1. By removing the cost to upgrade, users have no reason to avoid upgrading and trying out what Microsoft has to offer in Windows 10, especially those still clinging on to the 6-year-old Windows 7.

Microsoft's long-term aim for Windows 10 is to achieve one billion installs in the next three years. Considering we've seen 100 million installs in two months, Microsoft is well on its way to achieving this goal, especially with the launches of Windows 10 Mobile and Windows 10 for Xbox One still to come.

In the meantime, Microsoft will launch a collection of new hardware, including the Surface Pro 4 and new Lumia smartphones, at an event next week. When these new devices hit the market, they're sure to increase sales of Windows 10 products.