Enhanced Write Filter (EWF) Overview (Standard 8)

7/8/2014

Review Enhanced Write Filter (EWF) technical documentation for Windows Embedded 8 Standard (Standard 8).

Enhanced Write Filter (EWF) lets you write-protect a run-time image. By redirecting all write requests to RAM, EWF enables the run-time image to maintain the appearance of a writable run-time image.

Important

The functionality of EWF in Windows Embedded 8 Standard (Standard 8) is mostly the same as in Windows Embedded Standard 7 and is included for backward compatibility. However, EWF does not support Hibernate Once/Resume Many (HORM) or disk mode in Standard 8.

You can add EWF to your image by adding the Enhanced Write Filter module to your design in Image Configuration Editor (ICE) or Image Builder Wizard (IBW).

In This Section

  • EWF Concepts
    Describes the EWF architecture and volume configuration.
  • EWF Modes
    Describes differences between the two EWF modes.
  • EWF Integration
    Specifies EWF interactions with other Standard 8 features and components.

See Also

Concepts

Write Filters Overview
Enhanced Write Filter Reference