adding programs and unattended updates to windows iso

Is beyond most. I used to do this about a decade ago but today it's not worth the effort so I just install what I want after the OS install.

Since I don't use the ISO but some USB stick with the usual Windows 10 install on it I can add other apps to a post-install folder for install later.

-> I do want to mention NINITE.COM since VLC and such do get updates so Ninite makes it all too easy.

Still want to create an ISO?
1. https://www.tenforums.com/tutorials/96683-create-media-automated-unattended-install-windows-10-a.html
2. Adding more software looks to be in chapter 3 of
https://searchenterprisedesktop.techtarget.com/blog/Windows-Enterprise-Desktop/Create-a-Custom-ISO-for-Windows-10-Part-1-of-6

Below are the steps to add Windows Update Packages to Windows ISO Image USING DISM GUI TOOL.

- Mount your Windows ISO to a drive letter.
- Create a folder, copy the contents of the ISO to the folder.
Visit the Microsoft Update Catalog and get the Windows Update .msu or .cab packages.
- Search Microsoft Update Catalog using the phrase windows 10 version 21H1 x64 to find updates available for Windows 10 v21H1 64-bit. If you’re running 32-bit Windows, then use the x86 keyword instead of x64.
download the DISM GUI tool and run the program as administrator.
-After that create a folder, for example D :\Mounted-WIM where you’re going to mount the install.wim file
-In the DISM GUI tool, point the path to install.wim. In this example, the path would be D :\Win10ISO\sources\install.wim.
-Click the Display WIM Info button to view the indexes in the WIM file.
- Select 6 in the Index drop-down box
- In the Mount location, type in D :\Mounted-WIM.
- Click the Mount WIM button.
- Click on the Package Management tab in DISM GUI.
- Now you can type on your browser to locate the packages folder. In this example, the Windows Update packages are stored under D :\v21H1 Updates.
- Click on the Add Packages button.
- Then go back to the Mount Control tab, and click Dismount WIM.
- Click Yes when you’re asked to commit changes made to the WIM. Now, every available Windows Update package (*.msu and *.cab) in that folder will be integrated into the install.wim image.
- You can now delete the D :\Mounted-WIM and D :\v21H1 Updates folders manually.

You’ve now had successfully updated your Windows Setup source or USB installation media.

Hope this helps you,
Regards,
J . Wick