An administrator installs a new network card in a properly functioning DC. During the Windows boot up process the DC bluescreens. Which of the following is the NEXT step?

Directory Services Restore Mode (DSRM) is a specialized boot mode for recovering and repairing Active Directory on a Domain Controller, not for resolving general hardware-induced bluescreen issues.

The Last Known Good Configuration (LKG) boot option uses a saved copy of the system's configuration from the last successful boot, making it the most appropriate immediate action when a recent hardware or driver change causes boot failure. It effectively rolls back problematic configuration changes, allowing the system to boot to a stable state.

Simply rebooting the server again will likely lead to the same bluescreen error, as the problematic configuration or driver is still in effect.

Safe Mode loads only essential drivers and services, which can be useful for further diagnosis, but Last Known Good Configuration is a more direct first step to restore a working boot state when a known configuration change caused the issue.