Microsoft released the new Fast Ring Insiders today Windows 10 Redstone build 14257. As we mentioned in the announcement post n picture (ISO) will be released soon from unofficial sources.
Actually the files of the update have just been released by the famous leaker Wzor. Wzor uploaded the original files (ESD) to the cloud which uses and post the links.
Those interested below are the ESD links along with an ESD Decrypter link for Windows 10 build 14257.
Let's see how you can build your own ISO.
Download ESD files
Download ESD Decrypter for Window 10 build 14257
After downloading the above files, open the ESD Decrypter .zip in the folder where you saved all of the above downloads.
Right-click on decrypt.cmd and run it as administrator. Type 4 on the line orders which will open to create your own archive ISO.
Sit back and wait for your file to be created...