Delete if you receive an error message.
KB4023057, an update that makes the machine ready to update over time, creates problems for users.
Try this if you have it again
The problem now is not the update itself, but suddenly it is returned again. And if this happened to you, you still get an error message. Then, if you have this, try deleting the update from the list of applications, and then request the update again.
You can also try this solution.
The update only came in December.
To prevent Windows from stealing many GBs from you
Clean to ensure space for updates on older versions of Windows
But, according to Windowsreport, KB4023057 is not enough similar to the earlier version using older versions (as we understand it) because it also provides updates for Windows Update Service Parts for Windows 10 versions 1507, 1511, 1607, 1703, 1709, and 1803.
The upgrade may also have the positive effect of freeing up disk space if there is not enough space to install future updates. Fear not: Microsoft probably only uses DiskCleanup. Or ..?