Windows 10: Windows 10 ISO Download
Flight Team Leader
My goof. It used to. Bummer.....
Tutorial has been updated to remove the old Option 1 for the no longer available Microsoft Tech Bench, and replaced it with the Media Creation Tool.
Option 2 is now for downloading a Windows 10 Education ISO.
Option 3 is still the same for Windows Insider ISO.
It's mentioned here, in post #1:
An ISO file from the Media Creation Tool (MCT) uses sources\install.esd which is a compressed version of install.wim, but cannot be used as a source image for DISM.
-that the ESDs downloaded using the MCT are not suitable as source images for DISM component store repairs - that is not exactly true, but it is worth understanding why the command might fail. Usually this is because the command points to the wrong image.
Here's the full set from the MCT - x86 and x64 - of all editions of the current branch 1607 build 14393 as they appear in the c:\esd folder. Look at the file sizes that are downloaded - 2.2GB and 2.8GB.
Beneath lie the ESD files opened as archives by 7-zip file manager. Note the images 1 to 7 in each ESD:
In order to clarify which Image relates to which index number, it is necessary to look into the wiminfo file .xml. It can be viewed in a web browser, or a special text editor that understands xml formatting. Ordinary Notepad is not much use here this is Notepad XML, a little known Microsoft xml reader and editor:
It can be seen that the layout of Images and their indices are as below:
1: 265,093,642 bytes; Windows Setup Media
2: 1,505,902,747 bytes; Microsoft Windows PE (x64)
3: 1,658,055,774 bytes; Microsoft Windows Setup (x64)
4: 14,440,586,483 bytes; Windows 10 Pro
5: 14,283,712,175 bytes; Windows 10 Home
6: 14,267,982,168 bytes; Windows 10 Home Single Language
7: 13,947,202,038 bytes; Windows 10 Education
All those images (a total of ~60GB!) - all from an ESD of less than 3GB downloaded bytes.
The x86 ESD contents follow the same convention. It becomes clear how the setup ISO may be created from these elements.
It also becomes clear that if using DISM to service one of these editions, the correct index is required in the command.
Thus to service a Windows 10 Pro build 14393 with this ESD, then index 4 must be indicated in the DISM Command:
Dism /Online /Cleanup-Image /RestoreHealth /Source:wim:C\ESD\Download\installx64.esd:4 /limitaccess
and it can be shown that this command indeed, works as it should:
Thescreenshot also shows that the contents of the ESD Index 4 are identical bytewise with the contents of install.wim in the \sources folder of the ISO downloaded from the Microsoft servers using this tool:
Microsoft Windows and Office ISO Download Tool
The tool is regularly updated to include Windows Insider releases too. Check for the latest version. once the edition etc., has been selected, it provides the download link too:
(English International is the same as English GB)
So good luck with Dism and servicing your editions that only appear as ESDs!
ESDs as containers are fantastic for fast multiple image downloads - the compression algorithm hardly increases the size of the ESD if a new image is added to the ESD package.
Last edited by Fafhrd; 1 Week Ago at 01:34.
Reason: added total sizes of files to text
I just spotted this. Thank you Microsoft for another retrograde action.
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