We reported two days ago that Microsoft was not talking about Windows Lite and Windows Core OS at Build 2019, suggesting the OS will not be arriving any time soon.

Now the WC’s Zac Bowden has added some extra detail. According to his sources, Windows Lite is still not able to run win32 apps, which is a significant issue since the new Chromium-based Edge browser, which is an integral part of the OS, is just such an app.

The killing of the old Edge browser also reportedly threw a spanner into the development of the Windows Lite, which was deeply integrated with Edge.

They also report that the OS may not get a public preview before release since it will be a firmware-based OS like Windows Mobile, rather an ISO-based one like Windows 10. The OS is reportedly being tested on the Surface Go, Surface Pro 4, 5 and 6.

Windows Lite may go into broader internal testing in the summer, but may only get a public release on devices sometime in 2020 at the earliest, possibly on the dual-screen Centaurus laptop.

The report contains several bits of bad news – the work to bring win32 apps to Windows Core OS appears to be at an early stage, which suggests it is more complex and therefore more fragile than expected. The second is that at present there are no firm plans for public testing, meaning Microsoft will likely deliver a less than ideal first product.

Do our readers have confidence in Microsoft to deliver something useful with Windows Lite? Let us know below.