Yesterday, I came across this YouTube video describing an accessibility issue with Windows 11 25H2, where Narrator would not produce any audio in the Windows installer. I have already seen this exact same issue back in August when I tried to install Windows Server with an updated ISO (one that already has newer updates than the RTM already baked in). I thought I was completely out of luck. I thought I would not be able to install Windows anymore, since Narrator does not work.
Fortunately, though, I remembered a website called UUP Dump, which allows you to search for and download Windows update files from the Microsoft Update Catalog, and also allows you to convert them to full ISO files.
Note: Due to Windows 11 24H2 apparently being rejected by systems with recent versions of their UEFI firmware with secure boot enabled, the 2 ISO files have been pulled from the server. Users are now encouraged to create the ISOs themselves using UUP Dump.
How to Actually Create the ISO
- Go to UUP Dump.
- Search for “26100.1742”, or any build you want.
- Select a build from the table. Make sure it doesn’t say “Cumulative Update for …” at the beginning, you want the full build.
- Choose your language and adjust the options to suit your needs.