Wireless: Remove Cached Credentials (Windows 7) 
  1. Open the control panel by searching it in the Cortana search box.   
   
  
 
2. In the control panel, click  User Accounts , which is located towards the bottom of the list.   
   
 
  
 3. Click on Manage Credentials on the left-hand side of the window.   
   
  
 
4. Choose the credential that you want to edit...
                           
                           
                               Article Id:
                                18156