If you can still boot into Windows, open the VAIO Care app to see the model name. 2. Driver Availability & Compatibility
" is a chassis number rather than the official marketing model name. Sony typically does not provide direct Windows 10 drivers for laptops originally shipped with Windows 7 or earlier. 1. Identify Your Marketing Model Name Sony Vaio Pcg-71211w Drivers For Windows 10 64 Bit
| Problem | Likely Cause | Fix | |--------|--------------|-----| | Screen flickering or black screen after driver install | Faulty graphics driver version | Boot into Safe Mode, uninstall graphics driver, reinstall the modified version | | No Wi-Fi despite driver showing installed | Windows 10 disabled old Wi-Fi cards due to security | Run netsh wlan show drivers in CMD. If "Hosted network supported: No", the driver lacks Win10 signature. Reinstall using compatibility mode. | | Volume keys work but no on-screen display (OSD) | Missing Sony Event Service | Install “VAIO Event Service” from original Windows 7 drivers (set compatibility to Windows 7). | | Sleep/wake issues | Older SATA/ACPI driver | Update ACPI driver via Device Manager → System devices → ACPI lid/button drivers. | | Blue screen DRIVER_POWER_STATE_FAILURE | SFEP driver conflict | Uninstall SFEP driver, reinstall a community-modified version from VAIO forums. | If you can still boot into Windows, open