Required if you cannot connect to the internet via cable.
If Windows Update fails, you will need to download the drivers manually. Since Sony has moved support archives, here is the breakdown of the essential drivers for the running Windows 7 (64-bit). sony vaio pcg 71315l drivers for win7
running Windows 7 can be a bit tricky because the model number on the bottom sticker (PCG-#####L) is often a chassis series rather than the specific marketing model name used for support. For this specific series, the marketing model name is typically or a similar variation within the VPC-EB series . Essential Drivers for Windows 7 Required if you cannot connect to the internet via cable