You need physical access to the router for this. This won't work on someone else's Wi-Fi in the apartment next door. Security find-generic-password -wa XXXXX Reset the Router Type the following, replacing the Xs with the network name. On macOS, open up the Spotlight search (Cmd+Space) and type Terminal to get the Mac equivalent of a command prompt. (If you don't like the command line, there's third-party password recovering software like Cain & Abel or WirelessKeyView that can help you do the same thing.) The word displayed is the Wi-Fi password or key you are missing. In the new data that comes up, look under Security Settings for the line Key Content. Netsh wlan show profile name="XXXXXXXX" key=clear At the prompt below, type the following, but replace the Xs with the network name you copied you only need the quotation marks if the network name has spaces in it, like "Cup o Jo Cafe." Pick the one you want to get the password for, highlight it, and copy it. The results will bring up a section called User Profiles-those are all the Wi-Fi networks (aka WLANs, or wireless local area networks) you've accessed and saved. A blinking cursor will indicate where you type. That'll open the black box full of text with the prompt inside-it's the line with a right-facing arrow at the end, probably something like C:\WINDOWS\system32\>. Click the Star Menu, type "cmd" (no quotes), and the menu will show a Command Prompt right-click that entry and select Run as administrator. It requires that you go into a Windows Command Prompt with administrative privileges.
If you tell Windows to forget the network, it also forgets the password. It works because Windows creates a profile of every Wi-Fi network to which you connect. This trick works to recover a Wi-Fi network password (AKA network security key) only if you've forgotten a previously used password. Some require such extreme patience that the café idea is going to look pretty good. However, there are other ways to get back on the wireless. To read the original post in PC Mag, click here. Download an app for your phone like WiFi Map (available for iOS and Android), and you'll have a list of millions of hotspots with free Wi-Fi for the taking (including some passwords for locked Wi-Fi connections if they're shared by any of the app's users). You could just go to a café, buy a latte, and use the "free" Wi-Fi there. Perhaps you forgot the password on your own network, or don't have neighbors willing to share the Wi-Fi goodness. Without a password or passphrase, you're not going to get access to that network, or the sweet, sweet internet that goes with it. The problem is, if there's a lock next to the network name (AKA the SSID, or service set identifier), that indicates security is activated. Chances are you have a Wi-Fi network at home, or live close to one (or more) that tantalizingly pops up in a list whenever you boot up your laptop or look at the phone.
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