Have you forgotten your Wi-Fi password and want to retrieve it from the saved password list on your Windows 8 then check out the steps listed below.
Step 1: Right click on the Wireless Connection on Windows 8 desktop.
Step 2: Select Open Network and Sharing Center from the menu list.
Step 3: Click your Wi-Fi listed under the Connections and this should display the following Wi-Fi status window.
Step 4: Click the Wireless Properties button.
Step 5: In the Wireless Network Properties window, mark the check box with label as Show Characters. This should display the hidden Network security key.