Success! I can't thank you enough for your continued help in spite of my initial goof up. Have a great day.

So this is weird. I attempted to boot in safe mode to see if I could make a new user account from there. I didn't have any luck, but upon restarting, I found that the start menu is working again and...

Thanks! Looks like the temporary account. It also looks like when I deleted the files, I removed my ability to access the settings app. It doesn't matter how I try to launch it, the app refuses to...

The impression I'm getting is that windows didn't make a registry for the temporary account, so when I tried to do step nine, I mistakenly thought I was supposed to delete the user account SID.
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Unfortunately, I no longer have the two SIDs that the fix deals with, since I deleted the two while following step nine. It occurs to me that I may have deleted the incorrect files. In any case, this...

Heyo,

After Following steps nine and 10, I found that I'm still in the temporary account. Moreover, my start menu isn't working either now! I'm not entirely certain about what I could have done...