In Windows 8 the defualt remote desktop client is not the old Remote Desktop Client we all so used to use.
If you search for remote desktop in Windows 8 you will only get the new Metro style Remote desktop app.
If you miss the old Remote Desktop client you can still use it because it’s still available on Windows 8, however you need to digg a bit to use it,To access it type mstsc.exe in the search box.
And here it is our old Remote Desktop Connction client
You can also access it from the Run menu by pressing WIN+R and type c:\windows\system32\mstsc.exe