Windows Update Error 80073712 When Installing KB2943357 – OR – How to Repair Corrupted Windows Update Files on Windows 7 or Server 2008

Starting with Windows 8 and Server 2012, you can more easily fix corrupted updates using the “DISM.exe /Online /Cleanup-image /Restorehealth” command, but what about on Windows 7 or on Server 2008? Well, to be honest, it is kind of a pain in the ass and quite a lengthy process.

This seems to be a prime candidate for some sort of automated batch or PowerShell script that could parse out the bad updates from the log file, extract the needed files from the KB .msu packages, move them to the temp directory, and then re-run the System Update Readiness Tool. Lord knows it would save a lot of people some time and headaches but I don’t know whether it is even worth the hassle of programming it all seeing as how mainstream support for Windows 7 will be up soon and extended support will be around until 2020. That and I’m sure a lot of people have been suckered into upgrading to Windows 10 for free as well. It’s ok, there’s nothing in that giant wooden trojan horse that they just carted into your living room. Your data is safe and there are absolutely zero privacy concerns, trust them. Go back to sleep zombie.

Anyways, if you have installed any Server 2008  or Windows 7 operating systems in the last say year or so, you probably have noticed that Windows Update gets broken almost every single freaking time and it is quite cumbersome. So here is the cliff notes version on how to repair your corrupted Windows Update files.
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