Here you can find p r 4m266a asrock bios for Windows. It's 100% safe, added from safe source and passed Norton virus scan!
Driver Info:
File: p_r_4m266a_asrock_bios.exe
Driver version: 1.1.7a
File size: 4 260 KB
OS: Windows 7, Win Vista, Windows 8, Win XP
Upload source: original install disk