The Toshiba website has Atheros drivers for 64 bit. Www.csd.toshiba.com, click on Download, then Satellite P500-ST6822, Windows 7 64 bit, WiFi and it should appear as the second one in the list. This download installs the LAN driver version 7.031 for Intel. Realtek* Ethernet Network Driver for Windows 7* for. Windows 7, 32-bit* Windows 7, 64-bit. Download Wireless Network Windows 7 64-bit Driver Absolutely Free! Drivers For Free software scans your computer for missing and outdated drivers. With free account activation and minimal restrictions on the number of downloads, you can download these drivers absolutely free in minutes.
Supported Devices and Features
Atheros AR5006 802.11a/b/g WiFi Adapter
Atheros AR5007 802.11b/g WiFi Adapter
Atheros AR5009 802.11a/g/n WiFi Adapter
Atheros AR9285 802.11b/g/n WiFi Adapter
Atheros AR9380 802.11 a/g/n WiFi Adapter
Atheros AR9382 802.11a/g/n WiFi Adapter
Atheros AR9485 802.11 b/g/n WiFi Adapter
Operating Systems
Microsoft Windows 7 Enterprise 32 Edition
,Microsoft Windows 7 Home Basic 32 Edition
,Microsoft Windows 7 Home Premium 32 Edition
,Microsoft Windows 7 Professional 32 Edition
,Microsoft Windows 7 Starter 32 Edition
,Microsoft Windows 7 Ultimate 32 Edition
,Microsoft Windows 7 Enterprise 64 Edition
,Microsoft Windows 7 Home Basic 64 Edition
,Microsoft Windows 7 Home Premium 64 Edition
,Microsoft Windows 7 Professional 64 Edition
,Microsoft Windows 7 Ultimate 64 Edition
,Microsoft Windows XP Home Edition
,Microsoft Windows XP Media Center Edition
,Microsoft Windows XP Professional
,Microsoft Windows XP Tablet PC Edition
,Microsoft Windows XP Professional x64 Edition
If you use (and pay) for a program that identifies and gets the latest drivers there is an newer QUAL COMM ATHEROS DRIVER version 10.0.0.227 dated 2-19-2003 available that also works.