Showing the status bat will allow you to see how many items are in a folder and the amount of disk space that's free on the drive. Here's how to turn it on and make it stick for all folders:
Click Start Explore to open Windows Explorer.
Click a folder in the left pane.
Click the View menu and select Status Bar. This turns the status bar on, but only for that folder.
Click the Tools menu and select Folder Options.
Click the View tab.
Under Folder Views, click the Apply To Folders button. This makes the view you just selected apply to all folders of the same type.