On Windows 10, libraries work similarly to folders, but they have been designed to organize files and folders into logical containers, even when the content isn't stored in the same physical location.

Windows 11/10 allows the addition of up to 50 locations to a Library. You have three ways to do it. Read: Which folders can be added to the Windows Library.

Libraries can be accessed from the Navigation Pane of Windows 10/8/7 Explorer. Libraries can be shared with other people on your Home network through a new network sharing feature in Windows ...

I’ve already described this process for Windows 7 and 8.1, so I’ll concentrate here on Windows 10. If you’re going to partition your drive and haven’t done it before, read my instructions ...