Did Windows 10 update remove IIS?

Question

For about 5 years now I had a set up on my machine that runs my site locally. I enabled IIS. Configured PHP and MySql to run. Everything was working without an issue.

Today I turned on my PC and got a message that my Windows 10 machine was updated. When I went to check out my localhost, I saw that it wasn't running. IIS was disabled and all of the configurations were gone.

Looking at Windows Update history I see the following updates

https://support.microsoft.com/en-us/kb/3189866

https://support.microsoft.com/en-us/kb/3176937

https://support.microsoft.com/en-us/kb/3176935

https://support.microsoft.com/en-us/kb/2504637

Does anyone have an explanation for this? Why did Microsoft disabled IIS and removed all of my configurations? Is there a way to restore my previous settings?

update: For now, I rolled back to my previous Window's build and everything is back to normal.

Answer 1

Even after I re-enabled IIS, all the sites and app pools were gone.

I explained how I restored them here: https://stackoverflow.com/a/44184735/270348

Here's the main idea:

1. In a text editor, open C:\Windows.old\WINDOWS\System32\inetsrv\config\applicationHost.config. This is the original IIS data from before the update.
2. In another text editor open C:\Windows\System32\inetsrv\config\applicationHost.config. This is the active IIS data.
3. Replace the <applicationPools> and <sites> elements in the active file with those from the original
4. Run iisreset from an elevated command prompt