Sony officially retired "Sony eSupport" in 2016. Additionally, the PCG-71315L was a regional model (often sold in Europe/Asia). Today, if you visit Sony's support page, you will likely see a message: "This product is no longer supported."
Choose and point it to C:\Windows\Drivers\EXE or a C:\Windows.old folder if it exists. Essential Drivers to Look For: sony vaio pcg 71315l drivers for win7
: Synaptics or Alps pointing device drivers are needed for multi-touch gesture support. Sony officially retired "Sony eSupport" in 2016
After a fresh install, you might notice that the wireless internet isn't working, the brightness keys don't respond, or the graphics look fuzzy. Because Sony discontinued official support for many older models, finding the right files can be tricky. if you visit Sony's support page
Wired internet connection. Hardware: Realtek PCIe GBE Driver: Install_Win7_10064_07202015 (Realtek PCIe Ethernet Driver).