Final answer:
To preserve BIOS settings on a Dell, take a screenshot or write down the settings, as not all BIOS versions have an export option. The BIOS might not be affected by a system recovery, but it's good to have a record if the recovery includes an update or reset.
Step-by-step explanation:
To preserve BIOS settings before recovering the system on a Dell, the most reliable method would be to either take a screenshot of the settings or write them down on paper. While some BIOS versions may offer an "Export Settings" option, not all BIOS versions have this feature, so it's important to check your specific BIOS version. Writing down the settings or taking a screenshot ensures that you have a record of the original settings which you can refer back to after system recovery. Note that during a system recovery process, the BIOS settings may not be affected, so preserving them could be unnecessary unless the recovery process includes a BIOS update or reset.