(1) You should first make a Windows system image backup of what you've got, as I wrote here (the top answer). It can undo anything but BIOS & other firmware updates...
https://answers.microsoft.com/en-us/windows/forum/windows_10-hardware/if-i-upgrade-to-windows-10-home-edition-will-i/0ea245b8-0d9e-4603-9544-5f4b6842f46c?messageId=15b37785-f2f9-4877-a174-602f9edfab42
If I upgrade to Windows 10 Home edition, will I lose my device drivers?
(2) A less drastic way to undo driver changes is to use a restore point. Type "restore" into Search to make one. It also undoes settings & Windows quality updates (but not feature updates). But most drivers are easily uninstalled individually w/o having
to do even that.
(3) Here is your computer's site...
https://support.hp.com/us-en/product/hp-pavilion-21-h000-touchsmart-all-in-one-desktop-pc-series/6528604/model/6529764
HP Pavilion 21-h013w TouchSmart All-in-One Desktop PC (ENERGY STAR)
Most stuff there is old. Still, you should compare driver versions there against what is in
"right-click START, Device Manager". If greater at the site, first try to update it using Device Manager (search automatically). If that fails to get it, take the one from the site. But take nothing that doesn't already exist in Device Manager,
because not all same computer models are equipped the same.
Oddly, your site lists no BIOS update. The BIOS you've got now is old (2014-6-16). This article seems to say how to update it...
https://support.hp.com/us-en/product/hp-pavilion-21-h000-touchsmart-all-in-one-desktop-pc-series/6528604/document/c00007682
HP Consumer Desktop PCs - Updating the BIOS (Basic Input Output System)
(4) If "The whole thing doesn't load!" refers to SetupDiagResults.log, open it in Notepad. Then use Ctrl-A & Ctrl-C to copy it. Paste it here. The picture you pasted seems to be of the final attempt to update which quickly aborted on you w/o
an error message. But, if there is nothing more in SetupDiagResults.log, maybe try the feature update once more to see whether you'll get a better one.
(5) It does look like you've got a UEFI install. In that case, Windows doesn't like to see more than one EFI system partition anywhere during an upgrade. Let us see all disks & the partitions. Right-click
START, & select Disk Management. Use the divider lines in the header & between the panes to pretty it up...
