sfc /scannow WILL NOT function

2. This is what autorun looks like after making changes. I uninstalled fontbase because I thought it might be a problem causer but it shows up on scans and such sometimes.
3. My graphic programs which are causing problems are Affinty Photo and Affiity Designer (they're like Adobe Photoshop and Illustrator). I have the older Adobe CS2 but Windows 10 is making it increasingly difficult to use those older programs. Even in compatible modes, illustrator won't open for weeks at a time, then suddenly it works for a day or two then not again. Affinity  Designer worked most of the time without too much trouble so I then purchased Photo recently (after all the update issues) and it freezes with a message "not responding" at the top, sometimes it just suddenly shuts down without notice plus it stops other programs from responding too. Anything from Firefox to  File explorer and Task Manager. I've look up some help but so far I'm getting nowhere other than people saying that my pc is too old even though I researched that before my purchase and I was well in the compatibility  scope.
4. Oh Lord now setupdiag.log is empty!? WTH did I do now? So I redownloaded it and just get a blank notepad page again. The only change I've done is deleted Cyberlink reinstalled drivers and run autorun. I'm cursed that must be it. Will keep trying to figure it out.The file names is odd so    SetupDiag_16-May-2020.log instead of SetupDiagResults.log

CMR

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(1) I like keeping Autoruns entirely in my Downloads folder except for the shortcut on the Desktop. If ever I do another clean install, I'll just have to restore those folders to be back in business with Autoruns (whereas it would be deleted from Program Files). The Downloads folder normally is for raw downloads of programs & drivers. So, after a clean install, it can be recovered from backups & the stuff clicked to reinstall.

But now I've tried to extract Autoruns into "C:\Program Files\SysInternals" & got a different error than yours (I'm 1909, you know). It said it couldn't create the Autoruns folder. But, after I created it myself, the extract went well, & all worked as expected. I'm not sure that would work for you, your error messages look different.

But I do think you probably can move what you've got on the Desktop -- is it a SysInternals folder? -- into Programs Files. Then recreate the shortcut on the Desktop. Or move SysInternals to your Downloads folder. It's excellent you persisted & got it working -- but I think your Desktop is cluttered!

(2) "There is a LOT in there what would you like to see?"

Yep, there appear to be a trillion startups more than is shown in Task Manager's Startup tab. Careful you don't disable any accidentally. You'd have been able to spot where PowerDVD14Agent.exe was coming from (before you uninstalled it) by typing any part of that (say "DVD") into a Find box -- in the Entry tab (or Ctrl+F). Then, Find Next (or F3) will find any others. But, mainly, you want to look for anything suspicious, then investigate it. Here's one thing to do...

(a) Set "Options tab, Scan options" to verify signatures & to check VirusTotal…

You may also set Options to "Hide VirusTotal Clean Entries"...

(b) You will see the Publisher column now shows whether its signature is good, & there is a new VirusTotal column. Click the "Everything" tab to ensure all locations are shown. You may adjust the columns by dragging them in the header. If only one/two antivirus scanners say it's a virus, that's likely a false alarm. "2/71" means 69 of them didn't detect a virus. If you click that figure (2/71), you are taken to the VirusTotal site & can see which said what...

(2) Just looking at the names of that CyberLink group, sounds like it's duplicative of what Windows can do on its own. Sounds to me safe to uninstall. Some might call it "bloatware". I don't hate Dell, but eventually I uninstalled all of theirs. A clean install is really the best way to do it.

I was fearful this Dell wouldn't like a clean install, so I shrunk C: by 200 GB & clean installed into the unallocated space that created. That achieved a dual-boot. You get a menu at startup whether to boot into what you've got now or into the new installation. All I appear to have lost is one specialized keyboard key which I don't miss. If you don't like it, it is easily undone. If you do like it, probably it would be best to repeat the clean install (as I did), this time wiping all the partitions. Want to try it? The clean install, itself, takes about 28 minutes.

(3) "Unfortunately the graphic driver didn't seem to help.  I'm told now that my pc may be too old to work properly with them"

What apps are having trouble with your graphics drivers?

(4) May as well post another SetupDiagResults.log. So far what I get is...

2. I tied moving the autorun  and got this

but I did unzip it again on the desktop and found those files. Looked again and found MS had rearranged my desktop icons. I read left to right in rows and it reads everything in up and down in columns then I can't find anything. Tried the autorun from there and same thing happened.

Deleted shortcut and clicked again and bingo it worked! Not sure why but a gift horse- not asking questions.  There is a LOT in there what would you like to see?

3. Okay good; I'll uninstall cyberlink programs. I'm happy to get rid of programs I never use but always wonder is it'll mess something else up.
4. Unfortunately the graphic driver didn't seem to help.  I'm told now that my pc may be too old to work properly with them even though it exceeded their requirements before I bought it. No advanced options in apps but tried repair through Control Panel> Programs> uninstall but message it can't find it so I may have to uninstall and reinstall them.
5. I tried again to install 1809 -Some update files are missing or have problems. We'll try to download the update again later. Error code: (0x80073712). I'm not sure why it keeps saying it can't download when it's the install that always fail.