First, you need to know which version of Windows you are running.
In the bottom left corner of your computer screen will be an icon that used to be the start button in older versions of windows.
In windows 7, that icon is round and looks like this
In Windows 10, the icon is more square and looks like this
Follow the steps given below to map a network drive on Windows 7
Note: If you are unable to connect to a network drive or folder, the computer you are trying to connect to might be turned off, or you might not have the correct permissions. Try contacting your network administrator.