issues with clean install on windows 10 pro

I just did a clean install of windows 10 pro to hopefully help fix some of the issues ive been having with windows 10. unfortunately im still having the same issues.

issues 1: When i'm using windows 10 and viewing folders with many icons such as pictures of videos the thumb nail loads most of the time but then just turns to a white file with the name. once it does that if i right click on the any icon windows explorer just locks up. I have to go in to the task manager and close windows explorer which there seems to like a ridiculous amount of those open even though i just have 1 window open.

issue 2: I cant get in to the Set default programs in the control panel it just keeps scrolling loading... with out ever loading anything.

2 suggestions :

1.) Try a system file check to look for corrupt files. It will try to do repair if any found.
Right click at Start button > click Command Prompt (Admin) > at the flashing prompt, copy/paste this.......
sfc /scannow

> press Enter.
It will take quite sometime.
When finished, it will give you one of the 3 reports...............(paraphrasing)
1. No integrity violation.
2. Found corrupt files and repair successful.
3. Found corrupt files but unable to repair.

If the report is #1, your solution lies elsewhere.
If the report is #2, check if your problems have been resolved.
If the report is #3, use this method................
In the same Command Prompt (Admin) windows, copy and paste this command...........

dism /online /cleanup-image /restorehealth

> press Enter.
Again it will take some time.
When finished, it will give you a report.

2.) Create another user account with exactly the same privileges as the one you are now using > logon to it.
See if everything is running as it should.
If yes, it means your "older" user account is corrupted.
Use the new account for a few days to make sure it is A-OK > then go back to the old account > backup the files you want to keep > delete the old account.