: Since Sony has removed many legacy files, community-run sites like the VAIO Library DriverScape often host mirrors of the original driver packages. The Ghost in the Machine
If you haven't wiped your original hard drive, you can often reinstall drivers directly from the system: I need Drivers for an old Vaio laptop model PCG-71316L
can be tricky because "PCG-71316L" is a chassis number (essentially a shell identifier) rather than the specific marketing model number used for support.
Check the sticker on the screen bezel . "PCG-71316L" is a chassis number; "VPCEBXXXX" is the actual model name needed for drivers.
Sony sold its VAIO division in 2014. Since then, official driver support for pre-2014 models like the PCG-71316L has been discontinued. However, you can still find archived driver packs.