This is the method because it guarantees Sony-validated drivers for your exact PCG-61711W configuration.
"Download Sony Vaio PCG-61711W Drivers for Windows 7: A Step-by-Step Guide" sony vaio pcg61711w drivers download windows 7 hot
Open , right-click the "Unknown Device," and select Properties > Details . Select Hardware Ids from the dropdown. This is the method because it guarantees Sony-validated
" number on the bottom sticker is often a chassis code. For more accurate driver matching, use the model name found on the (e.g., VPCEG13EL ) or inside the BIOS . right-click the "Unknown Device