But thanks to ESD decryption and conversion, many homebrew Windows 10 Build 10240 ISO with the name of such as en_windows_10_pro_10240_圆4_dvd.iso, 10240_CPRA_X86FRER_en-US_DV9.iso, 10240_CPRA_X64FRER_en-US_DV9.iso and so on already available on Internet, in case you want to perform the clean installation, upgrade your Windows 7 and Windows 8.1 via the ISO images or burn it to DVD or USB flash drive. In fact, once you upgrade to Windows 10 Build 10240, you will start to receive routine update immediately.įor Windows 10 Build 10240, Microsoft wants Windows Insiders to use normal upgrade path to install it, thus no official ISO images are been published. Microsoft is pushing “Windows as a Service” concept where a device running Windows will continue to receive updates and upgrades for improvements and features for the life of the device.

The most likely scenario is, if indeed the Windows 10 Build 10240 is the RTM version, it will be released together with various ZDPs to fix various bugs discovered since the build was compiled. Thus, Windows 10 Build 10240 may not be the final gold master RTM build that is released via Windows Update to general public through online electronic software download (ESD) via Windows Update on July 29th, 2015, the general availability date. For example, from 1 (the full build string number of build 10240) to 1_st1.150711-1429 or even 10240.16388 and so on. ZDP and other updates will increase the minor version of Windows 10, but not changing its major version (build number). Instead, Microsoft compiled and signed off an OEM Build for the purpose of distributing through offline channels, but it will be continuously updated through ZDP (Zero-Day Patch) for minor issues, unless there are major bugs been found, where new build will be issued. However, Microsoft has decisively toned down the concept of RTM milestone in Windows 10. Windows 10 Build 10240 is widely believed to be the gold master RTM release of Windows 10, which was sent to OEM manufacturers to load on the new PCs and tablet devices, and packaged into Windows 10 retail boxes for sales to consumer, essentially “released to manufacturing” (RTM). Microsoft has pushed out the flighting of the Windows 10 Build 10240 of retail channel to Windows Insiders on both Fast and Slow ring, in a latest attempt to beta test the Windows 10 upgrade path to iron out all possible bugs and errors when performing the upgrade.

Windows 10 rtm core retail