Accessing a Windows Share
This can prove to be quite a drawn-out process, so there are a couple of things that you will need to check. The first is that both devices are connected to the same network; the second is to configure sharing on your Windows computer.
Begin by going to Start and right-clicking Computer, then select Properties. From here, find the Computer name and Workgroup, and take a note of these for use on your Mac later on. Next open Start > Computer and select Network, then click the yellow information bar and select Turn on network discovery and file sharing.
Your Windows computer is now correctly configured for network file sharing, so we can now turn our attention to your Mac.
Open the Apple menu and find your way to the System Preferences > Internet & Wireless > Network folder, then select Advanced… - note that you may need to click the lock in the lower left corner and enter your password to access this screen.
You should see the WINS tab so click this and in the Workgroup field insert the workgroup name from your Windows PC that you jotted down earlier. With this entered, click OK and Apply, and then open the Go menu and select Connect to Server…
The next step is to enter the name of your Windows computer in the Server Address field, in the format:
(You can also use an IP address in this field, in the format smb://IPADDRESS).
With the details entered, click on Connect, and wait for the prompt to enter your Windows username and password.