If you are looking to get help with File Explorer in Windows 10, here are some links that will help you work with Windows File Explorer as well help you troubleshoot issues, if the need arises:

The File Explorer in Windows 10 comes with a new look and a few new options and tabs. It has a new icon, but the jump list is same as seen in Windows 8.1 and previous versions. However, the jump list now shows the pinned programs along with the frequently viewed files and folders. Go here to take a look at some Windows 10 File Explorer features & settings.

Useful links:

Disable Quick Access in Windows 10 Explorer

Quick Access in Windows 10 is not working

Remove duplicate Drive Letter entry from Windows 10 File Explorer

File Explorer keyboard shortcuts in Windows 10