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Start the computer using the last known good configuration

Updated: January 21, 2005

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

To start the computer using the last known good configuration

  1. Click Start, and then click Shut Down.

  2. Select Restart, and then click OK.

  3. Press F8 at the indicated time:

    • For an x86-based computer: When a screen of text appears and then disappears (the screen of text may include a memory test, lines about the BIOS, and other lines), press F8. There may be a prompt that tells you when to press F8.

    • For an Itanium architecture-based computer: After making your selection from the boot menu, press F8. There may be a prompt that tells you when to press F8.

    For information about configuring system settings that affect whether a prompt for F8 appears and how long it appears, see "To specify the default operating system for startup" in Related Topics at the bottom of this page.

  4. Use the arrow keys to select Last Known Good Configuration, and then press ENTER.

    NUM LOCK must be off before the arrow keys on the numeric keypad will function.

  5. Use the arrow keys to highlight an operating system, and then press ENTER.


  • Choosing the Last Known Good Configuration startup option provides a way to recover from problems such as a newly added driver that may be incorrect for your hardware. It does not solve problems caused by corrupted or missing drivers or files.

  • When you choose Last Known Good Configuration, only the information in registry key HKLM\System\CurrentControlSet is restored. Any changes you have made in other registry keys remain.

Information about functional differences

  • Your server might function differently based on the version and edition of the operating system that is installed, your account permissions, and your menu settings. For more information, see Viewing Help on the Web.

See Also


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