Hi Aubrianne,
There are times that this error occurs when some files in the Windows Update are missing or corrupted. Let's fix this by using the Windows Update Troubleshooter to automatically diagnose and resolve any software issues related to Windows Update.
Just double-click the latest WindowsUpdate.diagcab file to run the troubleshooter. Then, select Next and follow the steps in the wizard to find and fix issues with Windows Update.
Kindly update us with the result.