How to download an ISO image of Windows 10 Build 10041
Although Microsoft released a new build of the Windows 10 Technical Preview earlier in the week, it only made it available to Windows Insiders on the Fast ring, and through Windows Update. It’s not officially available as an ISO image yet (Microsoft currently only offers downloads for Build 9926).
However, it is possible to grab an ISO of the new build through unofficial channels.
This ISO was created using Windows Update files from Build 9926 (the setup files are genuine and it’s perfectly safe) and it’s hosted on Mega.
I’ve installed the ISO in VirtualBox (instructions are the same as here), and can confirm it’s exactly the same as if you updated Windows 10 Build 9926 through Windows Update.