Toggle Showing Drive Letters in Explorer
By default, Windows 7 shows the letters representing drives in Explorer windows. Your main Windows 7 hard drive is C:, your DVD drive may be D:, and other drives / partitions as well as removable media have their own letters.
Some users would rather hide these letters, relying on the drive's volume name and/or media type. Others may not see these letters and wish to show them again.
1. Click the "Start" button, type folder options and click the "Folder Options" link that appears.
2. When the "Folder Options" multi-tabbed dialog box appears, click the "View" tab.
3. Check or uncheck "Show drive letters" as desired.
