1. Download the BIR12K3B.EXE file to a temporary or download directory (please note this directory for reference).
2. Go to the directory where the file was downloaded and double-click the BIR12K3B.EXE file to begin the installation.
3. At the "BIOS R0112K3 For Windows 2000 and XP" box, click Next. Several setup boxes will briefly appear as the files are extracted and the computer model is identified. As these processes complete, the boxes will close automatically.
4. At the "Information" box, insert your prepared 3½ bootable floppy disk into the drive.
5. Click OK to begin copying the BIOS files onto the bootable floppy disk.
6. At the "Finished copying files" screen, select "Yes, I want to restart my computer now" and then click Finish. Be sure to leave the bootable floppy disk with the BIOS files in the floppy drive. As the computer restarts, it will boot from the floppy disk instead of the hard drive. The PhoenixPhlash™ Utility will launch. Please wait as the installation of the BIOS will take one to two minutes to complete. Once the installation is complete, the computer will automatically turn off.
7. Eject the bootable BIOS installation disk from the drive.
8. Turn on the computer.

After the computer restarts, the installation of the BIOS is complete.

• Before installing this update, be sure the computer is running from AC power. If the installation of the BIOS is interrupted by power loss, the computer may not operate correctly or at all!
• When upgrading the computer to a supported Windows operating system that did not ship pre-installed, please be sure to first read Sony's upgrade information. If the new operating system is not installed or configured correctly, some updates may not install correctly.
  • For more information about upgrading a computer to Windows XP, please be sure to read Sony's Installing the Microsoft® Windows® XP Operating Systems document.
  • For more information about upgrading a computer to Windows 2000 Professional, please be sure to read Sony's Installing the Microsoft® Windows® 2000 Operating System document.
• During the installation of this update, be sure that you are logged in as the Administrator or as a user with Administrative rights.
• To ensure that no other program interferes with the installation, save all work and close all other programs. The Taskbar should be clear of applications before proceeding.
• It is highly recommended to print out these instructions as a reference during the installation process.