Microsoft announced availability of Windows 10 as a free upgrade or with new PCs and tablets, although the company has kept its powder dry on its plans for the platform in the mobile phone space.

The company said the platform will offer “one experience that will become available on the broadest range of devices, including PCs, tablets, phones, Raspberry Pi, Xbox One, HoloLens and more”, with more than 2,000 devices or configurations already in testing.

Ian Fogg, director of mobile analysis at IHS Technology, said: “Microsoft has lost the smartphone OS war to iOS and Android. Now, Microsoft is pursuing a strategy clearly inspired by that understanding”.

After making bold promises for the platform across multiple device types, the computing giant has already said that not all devices will support all of the features of the platform – which is unsurprising considering the vast differences in capabilities across the full range.

But, while Microsoft has promised Windows 10 updates for a number of its Lumia-brand smartphones, so far it has not revealed when this may take place.

Microsoft is also in the midst of a massive revamp of its mobile phone unit, having taken more in impairment charges related to the former Nokia Devices and Services business it bought than it paid for it in the first place.

With much of the volume for its mobile devices coming from entry-level smartphones, it is believed that the company will shift focus to premium devices, more akin to its strategy with the Surface tablet line.

The company is already making available many of its core applications – which had been differentiators for Windows Phone – available cross platform, as it looks to extend the reach of its software beyond its own hardware.