Before I read Woody’s article today I found this fix – https://answers.microsoft.com/en-us/windows/forum/all/cant-install-windows-updates-error-code-80248015/61f1309b-90f3-4c5f-bcc3-63440155577a?auth=1
It works, but you lose your update history, although all updates still show up in Control Panel\Programs and features\Installed updates.