Dell Vostro 3490 Service Manual

Secure boot

Table 1. Secure BootThe following table describes the information about the computer’s secure boot:
Option Description
Secure Boot Enable Allows you to enable or disable Secure Boot feature
  • Secure Boot Enable

This option is selected by default.

Secure Boot ModeAllows you to modify the behavior of Secure Boot to allow evaluation or enforcement of UEFI driver signatures.
  • Deployed Mode (default)
  • Audit Mode
Expert key Management Allows you to manipulate the security key databases only if the system is in Custom Mode. The Enable Custom Mode option is disabled by default. The options are:
  • PK (default)
  • KEK
  • db
  • dbx
If you enable the Custom Mode, the relevant options for PK, KEK, db, and dbx appear. The options are:
  • Save to File- Saves the key to a user-selected file
  • Replace from File- Replaces the current key with a key from a user-selected file
  • Append from File- Adds a key to the current database from a user-selected file
  • Delete- Deletes the selected key
  • Reset All Keys- Resets to default setting
  • Delete All Keys- Deletes all the keys

NOTE: : If you disable the Custom Mode, all the changes made will be erased and the keys will restore to default settings.


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