How to install Microsoft Windows 8 on Windows 7-based computer and How to install Microsoft Windows 7 on Windows 8-based computer - ThinkPad
Affected Configurations

The above symptom is associated with, but not limited to, the following systems:

ThinkPad:

  • ThinkPad L430, L530
  • ThinkPad S430
  • ThinkPad T430, T430i, T430s, T430si
  • ThinkPad T530, T530i
  • ThinkPad W530
  • ThinkPad X1 Carbon (Type 34xx)
  • ThinkPad X131e
  • ThinkPad X230, X230i, X230 Tablet, X230i Tablet
  • ThinkPad Edge S430

The system is configured with:

  • UEFI BIOS feature
Applies to
  • Microsoft Windows 7
  • Microsoft Windows 8
Solution

How to install Microsoft Windows 8 on the Windows 7-based computer:

  1. Update the UEFI BIOS to the latest version which supports Windows 8.
  2. Turn off the computer.
  3. Turn on the computer.
  4. While the "To interrupt normal startup, press Enter" message is displayed at the lower-left area or lower-center of the screen, press the F1 key. The ThinkPad Setup menu will be displayed. If a password prompt appears, type the correct password.
  5. Select Restart, then make sure the operating system Optimized Defaults option is set to:
    • Enabled (for Windows 8 64-bit)
    • Disabled (for Windows 8 32-bit)
  6. Press the F9 key to load default configuration.
  7. Select Yes.
  8. Insert the Windows 8 Installation DVD into the DVD drive, then press the F10 key to save configuration and exit.
  9. Select Yes.
  10. Follow the instructions on the screen to restart the computer.
  11. Follow the instructions of Windows 8 installation DVD to install Windows 8.

How to install Microsoft Windows 7 on the Windows 8-based computer:

  1. Turn on the computer to start Windows 8.
  2. Hold down the Windows logo key and press C to open the Charm bar on the screen.
  3. Select Settings, then Power from the menu.
  4. Select Reboot to restart the computer.
  5. While the "To interrupt normal startup, press Enter" message is displayed at the lower-left area or lower-center of the screen, press the F1 key. The ThinkPad Setup menu will be displayed. If a password prompt appears, type the correct password.
  6. Select Restart, then make sure the operating system Optimized Defaults option is set to Disabled.
  7. Press the F9 key to load default configuration.
  8. Select Yes.
  9. Insert the Windows 7 Installation DVD into the DVD drive, then press the F10 key to save configuration and exit.
  10. Select Yes.
  11. Follow the instructions on the screen to restart the computer.
  12. Follow the instructions of Windows 7 installation DVD to install Windows 7.
Additional Lenovo Support Information


If you are unable to find what you are looking for, please do try the following options:
1. Lenovo Assisted Search
2. Product usage and general troubleshooting tips
3. Lenovo Support Forum
4. Technical Support Call Centre

Country Availability
AvailableWorldwide
Alias ID : SF12-T0068
Document ID : HT075596
Legacy Document ID : SF12-T0068
Last Updated :
Copyright © Lenovo 2013, all rights reserved
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