Appreciated, thanks.

Or My Confusion.
I still don't understand why, the Desktop i get to above This Pc folder has a This PC icon in it, but it also has icons for my E: and F: external drives, but both of those are...

When i do what you suggested i do indeed have
Quick Access
Desktop
Thank you
So the "Desktop" reached through This PC folder then click up arrow ( go up one level ) is simply a conceptual...

My file explorer collapsed has
Quick Access
One Drive
This PC
Network
in that order. Desktop only appears in the navigation panel if i open This PC.

Yes i did, i deleted all 4 partitions - do you think this is a problem ?. I dont know wether to start sorting out my settings and so on or to do a 2nd clean install.

I have a 2nd Desktop above ThisPC access via the up arrow ( up one level ).

I have reinstalled Windows 10 using a USB, that should be a clean install, but the problem is still there - how?.
Have...