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EWF Modes

There are several different modes of EWF based on the implementation of the EWF Overlay and the EWF volume. You can configure EWF to store the overlay data in either RAM or on a disk. The EWF volume can exist in unpartitioned space on the media, or within the system registry. For more information, see EWF Overview.

Select the mode of the EWF overlay when you configure the Enhanced Write Filter Component in Target Designer. EWF RAM Reg mode requires additional configuration settings after the run-time image is deployed.

In This Section

EWF Disk Mode
Describes EWF Disk modes, usage scenarios, and configuration information. EWF Disk modes store overlay data on disk, and store the EWF volume in unpartitioned space on the disk.
EWF RAM Mode
Describes when to use and how to configure EWF RAM modes. EWF RAM modes store overlay data in RAM, and store the EWF volume in unpartitioned space on the disk.
EWF RAM Reg Mode
Describes EWF RAM Reg modes, how they differ from EWF RAM modes, and additional configuration details. EWF RAM Reg modes store overlay data in RAM, and store the EWF volume in the system's registry.

Related Sections

Enhanced Write Filter
Describes the Enhanced Write Filter Help topics.
EWF Definitions
Describes EWF-specific terminology.
EWF Architecture
Describes the EWF driver architecture.

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