As error code 80073712 means The component store has been corrupted. So the direct suggestion is to repair component store with command line such as sfc or DISM. I noticed you have reply to DSPatrick about failure on repaire with them. We need to repair it with a specify source.
Try to refer to How to use DISM command tool to repair Windows 10 image, and check Fix problems with DISM using WIM image part.
We could get Windows 10 ISO image from the link below:
https://www.microsoft.com/en-us/software-download/windows10
By the way, I noticed you are using Windows 10 1809, we recommend to upgrade to the latest system version Windows 10 20H2 to experience the latest system and also upgrade will resolve such system issue.
Please note: Information posted in the given link is hosted by a third party. Microsoft does not guarantee the accuracy and effectiveness of information.
Bests,
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