User's Manual

USC and USC - LCE 35
Select and Apply Rollbacks
The Platform Rollback screen displays a list of available rollback components.
1
Select the check box of each rollback image that you want to apply to
the system.
To compare the version of the rollback image with the version currently
installed on the system, compare the versions in the
Current and
Previous fields.
•
Component — Displays the available updates; select the check box
of each update you want to apply.
•
Current — Displays the component version currently installed
on the system.
•
Previous — Displays the version of the rollback image.
2 Click Apply .
Post-requisite
The system reboots after the update process is complete. When applying
more than one update, the system may need to reboot between updates. In
this case, the system boots directly into USC - LCE and continues the update
process. This is an unattended update process.
Updating Devices That Affect Trusted Platform Module Settings
If BitLocker protection is enabled on your system, updating certain
components requires you to enter a recovery password or insert a USB flash
drive containing a recovery key during the next system boot. This situation
occurs only if the Trusted Platform Module (TPM) security setting is set to
On with Pre-boot Measurements. For information on how to set TPM
settings, see the BIOS User Guide available at support.dell.com/manuals.
When USC - LCE detects that TPM security is set to On with Pre-boot
Measurements, a warning message displays indicating that certain updates
require the recovery password or USB flash drive with the recovery key.
The warning message also indicates which components affect the BitLocker.
You can choose either not to update or to roll back those components by
navigating to the Select Updates screen and deselecting the check boxes for
the components.
LC1_3.book Page 35 Monday, December 7, 2009 3:14 PM