The context menu you gain by right-clicking the desktop is a powerful tool to open any kind of data and program. If you have a folder that you need to access regularly it might be a clever idea to simply pin it to that right-click menu to shorten the access time.
To achieve that you need to add a few keys to the registry. Open it by typing regedit into a run prompt which you get by hitting Windows key + R. In the registry, navigate to the Computer\HKEY_CLASSES_ROOT\Directory\background\shell key and right-click it to create a new key (New > Key). Give it the name of the command that shall later appear in the menu (Custom Folder in the example above). Afterwards right-click the created key and create another one called command. Left click the command key and change the (Default) value by double-clicking it. It has to be something like
Replace the path I used with the one to your folder (embrace it in double-quotes if it contains spaces) and put the explorer.exe in front of it, so the system knows which program to use to open the command.