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One of my friend connected me to the wifi in our area . Now my computer automatically connects to that wifi. I don't need to enter the password. I wanted to browse internet using my android phone. Since i don't know the password i can't connect to the wifi network. Is there any file/folder where the password for the wifi is saved on windows-7 pc ?

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possible duplicate of Change the password Windows 7 has stored for a wireless network –  iglvzx May 15 '12 at 5:08
not really, he wants to recover a unknown password from a system that has it. –  Journeyman Geek May 15 '12 at 5:10
@JourneymanGeek The password can be found using the same process. –  iglvzx May 15 '12 at 5:10

3 Answers 3

up vote 16 down vote accepted

In the computer that can connect to the network, type Manage wireless networks into the start menu search. Right click on the properties for the network you want and click Properties. In the security tab you should see an option to Show characters.

This will reveal your WiFi password that computer remembers.

This is the same process as described in the answer for Change the password Windows 7 has stored for a wireless network. Thanks @iglvzx for pointing this out.

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wow ! thank you ! –  steve May 15 '12 at 5:11

You can retrieve a hex encoded version (which works if you input it into the usual places) with wireless key view. The documentation for this states that the keys are stored either in the registry or the filesystem as follows

Windows XP: The wireless keys are stored in the Registry under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WZCSVC\Parameters\Interfaces[Interface Guid].

Windows Vista: The wireless keys are stored in the file system, under c:\ProgramData\Microsoft\Wlansvc\Profiles\Interfaces[Interface Guid]. The encrypted keys are stored in .xml file

The location for 7 and vista should be the same.

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+1 Nice! Ought to script something to extract these whenever I reformat. –  jay May 15 '12 at 5:13
that is nice !. –  steve May 15 '12 at 5:15
Well, its supposedly encrypted, but the one you have highlighted should work. Personally, since that tool will get the password, comparing it with the xml file should work out where exactly it is –  Journeyman Geek May 15 '12 at 5:45

And if all the other suggestions fail there's still NirSoft's WireLessKeyView ;-)

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