Wifi Button Does Not Work On Asus 1215B With Windows 7x64 Ultimate

After installing Windows7 Ultimate x64 on a EEE PC Asus 1215B Seashell serie, the button which toggle wifi did not work anymore, like any other keyboard function keys (less importante now). When I log on I receive a message in a popup windows which says: You must install ATK0100 driver! I had installed the P4GX before noticed the problem. I've tried to install the driver downloaded from asus support site but I receive an error message in a pop-up windows, without any clue about what the problem is. Nothing is registered in Device manager, nothing is found in Registry, no file related to atk* in system32driverstorefilerepository. It's not possible remove nor reinstall, cause nothing bad remains after my failed installations. I've tried many times, with Troubleshoot Compatibility and Run as administrator (my regular user is also an admin). After executing the driver app, one command prompt appears showing the log of the installation process, and all of sudden disappear. No control about it. It's only possible to read the upper case word FAILURE before the window close. No log is found. It works when I restore the machine to Windows 7 Starter that comes from factory. I dont know how to get the drivers inside the hidden partition.