Open Remote Desktop Connection by going to Start > All Programs > Accessories > Remote Desktop Connections
In the Remote Desktop Connection window, click on Show Options.
Click on the Local Resources tab.
Click on the More button in Local devices and resources section.
Expand Drives and check the checkbox corresponding to the drive you wish to share and click OK.

Share Local Drives

Go back to the General tab in Remote Desktop Connection and connect to your server.
Open My Computer on the remote server to see the shared drive.