[WindowsCentral.com]

If Windows Update isn't working, it could be caused by a problem with the SoftwareDistribution folder, and here we'll show you how to fix it.

On Windows 10, the "SoftwareDistribution" folder is an essential component for Windows Update, which temporarily stores files needed to install new updates to keep your device secure and with the latest fixes and improvements.
This folder is maintained by the WUAgent (Windows Update Agent), and typically, it should be left alone, but there will be times when you may need to clear its content manually in the case the Datastore and Download folders aren't synchronized, and it's preventing Windows Update from applying new updates to your PC.
Usually, if you're having trouble with Windows Update, or after updates have been applied, it's safe to empty the content of the SoftwareDistribution folder. Windows 10 will always re-download all the necessary files, or re-create the folder and re-download all the components, if removed.

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