Hi,
Something here might help:
Build a Static Website on IIS
https://learn.microsoft.com/en-us/iis/manage/creating-websites/scenario-build-a-static-website-on-iis
Here are also a few third party guides:
How to create website on IIS in Windows Server 2012 R2
Step by Step How to Host a Static Website using IIS in Windows Server 2016
How to Create Website in IIS on Windows
You'll also find more IIS experts in the dedicated IIS forum over here:
https://forums.iis.net/
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(If the reply was helpful please don't forget to upvote or accept as answer, thank you)
Best regards,
Leon