How do I delete/remove all settingings for windows 8 WIFI connections

I have an HP Envy m6-1225dx notebook pc with an intel core i5 cpu. The WIFI was originally setup to connect to a WEP wifi network. I installed a new ATT (netgear) router and configured for WPA2 WIFI. I am using the same SSID as before because the user has 7 other WIFI devices connected and working. When I attempt to connect with the HP Win 8 notebook described above, we can't connect with the correct security key. When i point to the SSID with the pointer it say the security in WEP.
I have gone to the command line and removed the saved networks using "netsh wlan delete" command. This removes the current SSID, but when I reconnect the security is still set for WEP for the HP Win 8 notebook for the SSID that all the other devices connect to with WPA2.
I can connect to a different network SSID using WPA2
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donnkConnect With a Mentor Commented:
from a command prompt:

1. list any profiles on the computer: netsh wlan show profiles
2. delete a profile: netsh wlan delete profile name="[PROFILE NAME]"
pcemsincAuthor Commented:
I have already tired this as explained in my orinigal post.
pcemsincAuthor Commented:
I finally had to reload the OS to completely correct the issue.
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