How do I find where a network drive is mapped to in Windows 7?

In Windows Explorer, you can also switch the view to "Details" and right-click the header to add a column named "Network location":

Helps if the admin has disabled CMD for you (!)

Go to Start » Run, type in cmd and press OK.

In the cmd box, paste the following, then press Enter to run it.

wmic path Win32_LogicalDisk Where DriveType="4" get DeviceID, ProviderName

Doing the above but typing in NET USE instead of copying the above also yields the same result.

Sometimes the net use or the Win32_LogicalDisk will not show some of the mapped drives, powershell cmd:

gwmi win32_mappedlogicaldisk | select name, providername 

will work then. The corresponding windows cmd is the following:

wmic path win32_mappedlogicaldisk get DeviceID, ProviderName