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Welcome to the HP Forums :) I would like to take a moment and thank you for using this forum, it is a great place to find answers. For you to have the best experience on the HP forum, you could also visit our HP Forums Guide for First Time Here? Learn How to Post and More. I see from your post that you need information and assistance related to latest Windows update. Don't worry I'll be glad to assist you.
After reviewing your post thoroughly, I understand you're having issues updating to latest build which is 1809.
Windows 10 October 2018 Update (version 1809) is a major refresh that brings new features and enhancements to improve the overall experience for desktops, laptops, and tablets.
According to Microsoft that there's indeed a problem that can delete your personal files during the upgrade process. As a result, the company has stopped distributing the October 2018 Update, and it's recommending users not to proceed with the installation using the ISO file until the problem is fixed.
I would suggest you wait until further notice before updating to the latest version.
Hope this answers your question.
Good luck and keep me posted about the developments. If this helps, please mark this as “Accepted Solution” as it will help several others with the same issue and give the post a Kudos for my efforts to help. Thank you and have a great week ahead. :)