Hello Gregory, sorry about your problems. My name is Marco and I will do my best to help you.
There are some solutions you may not have tried at the link below, even if it's for Windows 10.
https://tencomputer.com/desktop-icons-keep-rear...
You can run System File Checker, which will scan your system for missing, corrupt or damaged files and attempt to fix them1. This may repair any system errors that affect your PDF files.
Step to run the System File Checker tool (SFC.exe) (DISM)
Note: Respect the spaces or simply copy / paste the commands.
- Click on windows start button, type CMD
- Right click on " prompt command " and " run as admin "
- Now type this commands
DISM.exe /Online /Cleanup-image /Scanhealth
- Press Enter.
- Then, this command and Enter.
DISM.exe /Online /Cleanup-image /Restorehealth
- Then make the following commands.
sfc /scannow
When the scan is finished, check if there are any errors detected.
Restart the computer and check if it is now fixed.
Otherwise, check that you do not have software that could cause this problem.
You can do a Clean Boot for that, that is to say, start Windows with only Microsoft services activated.
If the icons behave well, it means that it is a program that is in question.
So you will have to reactivate one at a time to determine which one it is.
Here's how.
https://support.microsoft.com/en-us/topic/how-t...
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Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.