Display a saved WLAN password in Windows

To display your saved WLAN password in Windows, open up a command prompt.
In order to display the password, you need to specifiy the WLAN profile name by using the NETSH command.
The following command lists all wireless profiles that are configured on a Windows computer:

netsh wlan show profile

A similar output as below is being displayed, so lets focus on the highlighted example WLAN profile:

Profiles on interface Wi-Fi:

Group policy profiles (read only)
---------------------------------
    <None>

User profiles
-------------
    All User Profile : ********
    All User Profile : PrettyFlyForAWiFi
    All User Profile : ********
    All User Profile : ********

Now use the profile name to show the WLAN password (in clear text):

netsh wlan show profile PrettyFlyForAWiFi key=clear

Now some profile information, including the clear text key (Security settings) is displayed:

Profile PrettyFlyForAWiFi on interface Wi-Fi:
=======================================================================

Applied: All User Profile

Profile information
-------------------
    Version           : 1
    Type              : Wireless LAN
    Name              : PrettyFlyForAWiFi
    Control options   :
    Connection mode   : Connect manually
    Network broadcast : Connect only if this network is broadcasting
    AutoSwitch        : Do not switch to other networks
    MAC Randomization : Disabled

Connectivity settings
---------------------
    Number of SSIDs  : 1
    SSID name        : "PrettyFlyForAWiFi"
    Network type     : Infrastructure
    Radio type       : [ Any Radio Type ]
    Vendor extension : Not present

Security settings
-----------------
    Authentication : WPA2-Personal
    Cipher         : CCMP
    Authentication : WPA2-Personal
    Cipher         : GCMP
    Security key   : Present
    Key Content    : GiveItToMeBaby