- Application / Utility – VAIO Update – 5.1.1.04090
- BIOS – BIOS – R4041M3c
- Driver – SATA Driver Intel (Non-RAID)
- Driver – Wireless Lan Driver (Intel) XP – 12.4.3.9
- Full Packages (Recommended) – XP downgrade installer v4.0 for VAIO notebooks
Sony VAIO VGN-Z31MN/B Windows XP drivers