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Boot Configuration Data (BCD) Elements

BCD elements are contained within a BCD object. Some BCD elements can be associated only with certain objects, but some other can be applied to any type of boot environment application.

Element namespace is divided into three classes. The following table shows the classes and their associated numerical code.

Description

Value

Description

Library

0001

Elements can be applied to all boot environment applications.

Application

0010

Elements can be applied to only a particular class of boot environment applications, such as boot loaders.

Device

0011

Elements can be included only by device objects.

BCD elements have distinct data types associated with the data values. A BCD element can contain a String, Object, Integer, or Boolean data type. The following table shows the types and their associated numerical code.

Description

Value

String

0010

Object

0011

Integer

0101

Boolean

0110

 

Source of Information: Microsoft White Paper on Boot Configuration Data

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