The five million Windows Insiders who have been testing Windows 10 will also get Windows 10 on July 29. Other Windows 7 and Windows 8 users will still be able to upgrade to Windows 10 by downloading an ISO image from Microsoft. To upgrade using Windows Update users must be running Windows 7 (Service Pack 1) or Windows 8 (Windows 8.1 Update). The free upgrade will be available until July next year and those choosing to switch to Windows 10 can cancel their reservations at 'at any time', according to Microsoft. The 3GB file can be downloaded from 29th July. Most owners of Windows 7, 8 and 8.1 operating systems will see a Windows icon in their taskbar that will allow them to 'reserve' their free upgrade to Windows 10.

Those upgrading from a retail version of Windows 7 or 8, the post says, would be able to transfer their copy of Windows 10 to a new machine or PC with a new motherboard.

Ian Moulster, Windows product manager, said: 'My understanding is it's licensed to the device and not to you, so it's specific to the device and you wouldn't be able to use it elsewhere.'Ī post on suggests that only those who have upgraded from OEM versions of Windows 7 and 8 will need to buy a new Windows 10 license after replacing a computer's motherboard. However, people running an upgraded version of Windows 10 may need to buy a new copy of Windows 10 if they switch to a new machine or 'significantly upgrade the device' - which Microsoft counts as replacing the motherboard. TechRepublic's sister site ZDNet also recently published a guide for people running early builds of Windows 10 under the Windows Insider Program, detailing how to create ISO files from the OS that can be used for a clean install.

Windows 10 education install from usb