1. Download the BIO4K22K.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 BIO4K22K.EXE file to begin the installation. 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.
3. At the "Information" box, insert either the prepared 3½ Windows 95/98 bootable floppy disk or a blank formatted floppy disk into the drive (A:).
4. Click OK to begin copying the BIOS installation files onto the floppy disk.
5. At the "BIOS Upgrade for Microsoft® Windows 2000 and Me" screen, you will need to take different steps to complete the installation based upon the type of floppy disk used.
   • If you used a bootable floppy disk that contains Windows 95/98 bootable system files, continue with step 9 to complete the installation of the BIOS.
   • If you used a blank formatted disk that did not contain Windows 95/98 bootable system files, skip the remaining steps in this section and follow the steps in the Alternate Installation Method section to complete the installation of the BIOS.
6. At the "Setup Needs The Next Disk" box, insert your prepared 3½ bootable floppy disk into the drive.
7. Click OK to begin copying the BIOS files onto the bootable floppy disk.
8. At the "BIOS Ver. R0204K2 Upgrade for Microsoft® Windows 2000 Professional" screen, 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.
9. Eject the bootable BIOS installation disk from the drive.
10. Turn on the computer.

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

Alternate Installation Method

If you were not able to prepare a bootable floppy disk with Windows 95/98 system files, please follow these steps to complete the BIOS installation.

9. Insert the Sony System Recovery CD #1 into the DVDROM drive.
10. Eject the floppy disk from the floppy disk drive.
11. At the "BIOS Ver. R0204K2 Upgrade for Microsoft® Windows 2000" screen, click Finish. The computer will boot from the System Recovery CD.
12. At the black "Sony VAIO" screen, press the CTRL key and hold it down until a Microsoft Windows Startup Menu appears.
13. At the "Microsoft Windows Startup Menu" screen, press the DOWN ARROW to highlight the "Safe mode command prompt only" option.
14. Press ENTER to exit to a command prompt.
15. Reinsert the floppy disk into the floppy disk drive.
16. At the A:> prompt, type B: and press ENTER.
17. Eject the Sony System Recovery CD #1 from the external CDROM / CDRW / DVDROM drive.
18. At the B:> prompt, type PHLASH3 R0204K2.ROM and press ENTER. The PhoenixPhlash BIOS Flash Utility will launch and start the BIOS installation. Please wait as the installation of the BIOS will take one to two minutes to complete. Once the installation is complete, the computer will shut off.
19. Eject the floppy disk from the floppy disk drive.
20. Wait five to ten seconds and then 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!
• Before installing this BIOS update, you will need the following items:
  • A bootable 3½ floppy disk with either Windows 95 or Windows 98 system boot files
  • The floppy disk drive inserted in the computer's drive bay
  If you do not have access to a Windows 98 or 95 boot disk, you will need a blank formatted disk and the original Sony System Recovery CD #1.
• Please read Installing the Microsoft® Windows® 2000 Operating System. If the computer will be or has been upgraded to the Windows® 2000 operating system. If the new operating system is not installed or configured correctly, some updates may not install properly.
• 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.