When you have selected the version of Windows NT to start, and the boot loader has collected hardware information, you see the following screen:
The boot loader waits a few seconds for you to press the spacebar. If you do not press the spacebar and you have only one hardware profile, the boot loader loads Windows NT by using the Default configuration. Otherwise, you see this screen:
The first hardware profile is highlighted. If you have created other hardware profiles, use the down arrow to select the one that you want to use. For more information about hardware profiles, use the Find tab in Windows NT Help and enter profile.
You can also select between the Last Known Good Configuration and the Default Configuration. Windows NT automatically uses the Default Configuration if you do not select the Last Known Good Configuration. When you use the Default Configuration, the boot loader uses the Registry information that Windows NT saved at the last shutdown.
If you switch to the Last Known Good Configuration by pressing L and ENTER, the boot loader uses the Registry information that it saved at the completion of the last successful startup to configure this startup.
For more information about control sets, the Last Known Good Configuration, and the Default Configuration, see Chapter 8, "General Troubleshooting."