HP ENVY PRO

Table 5-3 Computer Setup—Security (continued)
●
Universal Unique Identier (UUID) number. The UUID can only be updated if the current chassis serial
number is invalid. (These ID numbers are normally set in the factory and are used to uniquely
identify the system.)
●
SKU Number
●
Family Name
●
Feature Byte. Default is enabled.
●
Build ID
●
Keyboard locale setting for System ID entry.
System Security (these
options are hardware
dependent)
NOTE: Available options are displayed depending on system conguration.
Virtualization Technology (enable/disable) - Controls the virtualization features of the processor.
Changing this setting requires turning the computer o and then back on. Default is disabled.
Secure Boot
Conguration
CAUTION: Changing the default setting of any of the Setup options on this page for operating systems
that do not support Secure Boot may prevent the system from booting successfully.
●
Legacy Support—Enable/Disable. Allows you to turn o all legacy support on the computer,
including booting to DOS, running legacy graphics cards, booting to legacy devices, and so on. If set
to disable, legacy boot options in Storage > Boot Order are not displayed. Default is enabled.
●
Secure Boot—Enable/Disable. Allows you to make sure an operating system is legitimate before
booting to it, making Windows resistant to malicious modication from preboot to full OS booting,
preventing rmware attacks. UEFI and Windows Secure Boot only allow code signed by pre-
approved digital certicates to run during the rmware and OS boot process. Default is disabled,
except for Windows systems which have this setting enabled. Secure Boot enabled also sets Legacy
Support to disabled.
●
Key Management—This option lets you manage the custom key settings.
◦
Clear Secure Boot Keys—Don't Clear/Clear. Allows you to delete any previously loaded custom
boot keys. Default is Don't Clear.
◦
Key Ownership—HP Keys/Custom Keys. Selecting Custom Mode allows you to modify the
contents of the secure boot signature databases and the platform key (PK) that veries kernels
during system start up, allowing you to use alternative operating systems. Selecting HP Keys
causes the computer boot using the preloaded HP-specic boot keys. Default is HP Keys.
●
Fast Boot—Enable/Disable. Fast boot disables the ability to interrupt boot, such as pressing f keys
to access items before the operating system loads. Default is disabled.
NOTE: If Windows detects a serious error, it will interrupt the boot process automatically and
display advanced boot options.
From Windows, you can press Shift and select Restart to access the screen that lets you boot to a
device or troubleshoot your computer.
Computer Setup (F10) Utilities 57