Admin Tips
- Windows Server 2008/2003/2000/XP/NT Administrator Knowledge Base
  - Windows XP
    - Admin Tips
      - Security
        Remove Cached 802.1X/PEAP Login Information (in XP)

Section(s): Security , Network
Published on May 28, 2009.
Last Modified on Jan 15, 2009.
Last Modified by Eric Geier.
Rating: Not Rated

Delete the username and password stored for authenication.

You can stop Windows XP from using the cached login credentials for 802.1X authentication, and delete the information. This is useful if there are multiple people using the same computer, and one is already authenticated and another wants to login with their own username and password. Unlike with Vista, you must modify the Windows Registry and delete the following key in XP:

Hive: HKEY_CURRENT_USER

Key: \Software\Microsoft\Eapol\UserEapInfo

About Eric Geier

Eric Geier (Dayton, Ohio) is an entrepreneur and author specializing in computer networking. He’s the founder and CEO of NoWiresSecurity, which provides an outsourced RADIUS/802.1X service to help businesses secure their wireless networks with the Enterprise mode of WPA/WPA2 Encryption.