Microsoft will officially announce the release of the next Windows 10 Preview on January 21, but words from Gabriel Aul, head of the Windows Insider Program, confirms that Windows 10 January Technical Preview ISO files will be available for download at launch.

Previously, the company promised that each new build would include its corresponding ISO files. However, they were available eventually after a few weeks the update was released through to the Windows Update. This time around, it seems that we will get the ISO files and the update through Windows Update at the same time.

@NaThanPhamIT Next build we release will include ISOs as well as published via Windows Update to upgrade existing installs.

— Gabriel Aul (@GabeAul) January 5, 2015

Although, we don’t exactly when the next build of Windows 10 will arrive, we know that Microsoft will be holding a press event on January 21, to present the consumer features of Windows 10, which may include Cortana running on the desktop, Continuum mode, new refinements and much more.

Source Twitter