Many drivers (chipset, audio, LAN, Wi-Fi, graphics) are provided automatically by Windows Update, especially on Windows 10/11.
One of the most common issues reported is the loss of support and the ASSIST/WEB/VAIO buttons after a reinstall. To fix this, you must install Sony's proprietary utilities in a specific order: Sony Shared Library Sony Firmware Extension Parser (SFEP) Driver VAIO Event Service / VAIO Event Center VAIO Control Center How to Find Your Drivers Drivers and Software updates for Personal Computers - Sony drivers sony vaio pcg 71911m drivers
Do you still run a PCG-71911M? What driver gave you the biggest headache? Let me know in the comments below. Many drivers (chipset, audio, LAN, Wi-Fi, graphics) are