C:\ is the abstraction over the Win32 file namespace \\?\C\. https://learn.microsoft.com/en-us/windows/win32/fileio/naming-a-file#namespaces https://learn.micr

C:\ is the abstraction over the Win32 file namespace \\?\C\. https://learn.microsoft.com/en-us/windows/win32/fileio/naming-a-file#namespaces https://learn.microsoft.com/en-us/windows/win32/fileio/namin... And of course, NT can do mount points.