So in this case the error must not only apply to low space on System Reserve. Try the fixes for the other causes here:
https://www.easeus.com/computer-instruction/win...
https://thegeekpage.com/fix-windows-update-erro...
https://windowsreport.com/windows-update-error-...
((Avoid ad links which intrude into editorial copy, especially avoid Restoro, PC Repair Tool and Reimage ads)
https://appuals.com/error-code-0x800f0922-faile...
(Avoid ad links which intrude into editorial copy, especially avoid Restoro, PC Repair Tool and Reimage ads)
https://techloris.com/windows-update-error-0x80...
(Avoid ad links which intrude into editorial copy, especially avoid Restoro, PC Repair Tool and Reimage ads)
https://www.winhelponline.com/blog/error-0x800f...
https://www.youtube.com/watch?v=Rud-8WQUx-w
If none of those help then I would manually upgrade to the latest version by downloading the ISO file or creating the latest installation media from Media Creation Tool, following the steps toward the bottom of the download page here in the section "Using the tool to create installation media:"
https://www.microsoft.com/en-AU/software-downlo...
Open the media in Explorer, or double click the ISO file to Mount it, right click Setup to Run as Administrator. Steps same as here:
https://www.yourwindowsguide.com/2016/06/how-to...
This saves your files, apps and most settings in place while upgrading to the latest version by the most stable method. It also brings all updates current and solves most problems because it reinstalls Windows.
In addition do the preparatory steps in this article for Overcoming Version Upgrade Failures: https://answers.microsoft.com/en-us/windows/for... which compiles all the fixes that have worked most and best over the years.
If the Version has problems I will work with you to try to resolve them. If the problems are unfixable for now, you have ten days to roll it back in Recovery settings. You can then hide it so it doesn't try to reinstall following this same method: https://www.tenforums.com/tutorials/8280-hide-s.... I can help you go over it first to see if it can be fixed.
Most problems are also resolved by doing this gold standard Clean Install which should get you past all difficulties as it has millions of others who have followed the steps in this link and never come back to report another problem: http://answers.microsoft.com/en-us/windows/wiki...
There is also older version media available from Microsoft TechBench here:
https://tb.rg-adguard.net/public.php. Burn to DVD using WIndows Image Burner or create bootable flash using one of the options here: https://www.tenforums.com/tutorials/2376-create...
I hope this helps. Feel free to ask back any questions and keep me posted. If you will wait to rate my post, I will keep working with you until it's resolved.
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