Find the missing device in :

Sony sold its PC business in 2014, but legacy support exists: 👉

If you have a newer VAIO (made after Sony sold the division to Japan Industrial Partners), go to:

| Symptom | Likely cause | Solution | |---------|--------------|----------| | Button does nothing | SFEP driver missing | Install Sony Firmware Extension Parser | | Opens Windows RE, not VAIO Care | VAIO Event Service missing | Install VAIO Event Service + VAIO Care | | Button works but no on-screen UI | Missing VAIO Care | Install latest VAIO Care for your Windows version | | “Assist Button driver” not listed separately | Part of chipset or hotkey driver | Download or VAIO Control Center |