how do i delete wlan settings

I have a company laptop that needs to go back on monday. I can't see how to delete the wireless connection settings and every time i open up the asas wlan card settings my ssid etc are there for all to see. Also, in the tcp/ip properties my ip address is shown. How do I delete these settings so that the next user of the laptop can't get the info?

 

Try this: with the PC turned off, turn off your wireless router. Turn on the PC and boot into Windows. Now, open up the WLAN utility and see if your info is listed. Alot of these utils only list the info if they can contact a router. You can also uninstall all of the WLAN software and drivers, and re-install it all right before you have to return the laptop. You may want to run a drive cleaning utility like CCleaner also to clean up the temp files and to erase the web history also....
CCleaner http://www.majorgeeks.com/CCleaner_Slim_No_Toolbar_d4191.html
Just be sure you have the WLAN software on a CD or download it from their web site BEFORE you uninstall the software and drivers.