In Windows 10, it is possible to make File Explorer show the full path to the opened folder. This will also display the full path to the folder on the button in the taskbar. Here is how to enable and use this option.
By default, the File Explorer app shows only the name for the folder opened in the current window. See the following screenshot:
The next image shows File Explorer with the full folder path enabled in the title bar.
To show the full path in the title bar of File Explorer in Windows 10, do the following.
In the Ribbon user interface of Explorer, click File -> Change folder and search options.
In the "File Explorer options" dialog, switch to the View tab, and tick (enable) the option Display the full path in the title bar. See the screenshot below.
If you need to change this option with a Registry tweak, this is also possible.
Here, create a new 32-bit DWORD value and name it FullPath. Set its value data to 1. If you already have this value, then just modify it.
Note: Even if you are running a 64-bit Windows version, you still need to create a 32-bit DWORD value.
Now, the File Explorer app will display the full folder path in the title bar.
You can also add Process ID (PID) to the title bar of File Explorer in Windows 10. Using this PID, you can identify the appropriate process in Task Manager quickly (or in any other process manager which is able to show the process ID). It can be useful when you need to kill or analyze a specific explorer.exe instance.