Updates fail on SP3

I just figured out that my cumulative updates have been failing since November 2016. I am already on W10. The updates download and go through the install process, but right at the end it says something like "Updates could not be completed" and it reboots as if nothing happened. It did install the firmware update last night, but none of the cumulative updates go through. I can look in my update history and there are three different ones that have been failing since November.

Any advice?

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