: Click Start , right-click Computer , and select Properties . Look under "System type" for 32-bit or 64-bit .
: Sites like Driver Scape offer historical versions of drivers for various operating systems if the original manufacturer's link is dead. 802.11 n wlan wifi driver for windows 7
Before downloading, you must know your system architecture and the manufacturer of your wireless adapter. : Click Start , right-click Computer , and select Properties