MSDN Library

Hibernation and EWF


You can configure your run-time image to always start from a hibernation file by using Enhanced Write Filter (EWF). The following list shows the benefits of starting from a hibernation file:

  • Quicker start time
  • Ability to define the state of a system by starting with specific applications and services running
  • Support for Hibernate Once/Resume Many (HORM)

Because EWF starts after the hibernation file is loaded, you can successfully start from, and save to, a hibernation file.

A new feature in Windows Embedded Standard 7 enables computers with EWF enabled to use the standard hibernation feature without activating HORM. To use the standard hibernate and resume features, you must ensure that HORM is deactivated.

How to Configure a Hibernate Once/Resume Many Run-Time Image

Describes how to configure an EWF-enabled run-time image to start from a hibernation file.

Enable a Hibernate Once/Resume Many Environment by Using EWF

Describes how to enable a Hibernate Once/Resume Many (HORM) environment by using EWF.

Design Considerations for Using EWF with Hibernation

Describes design considerations to make before setting up hibernation on an EWF-enabled run-time image.

Disable EWF in a Hibernate Once/Resume Many Environment

Describes how to disable EWF in a Hibernate Once/Resume Many (HORM) environment.

Apply Updates to a System That Uses Hibernate Once/Resume Many

Describes how to apply updates on a system that uses Hibernate Once/Resume Many (HORM).

Use an Unprotected Volume in a Hibernate Once/Resume Many Environment

Describes how to create an unprotected volume in a Hibernate Once/Resume Many (HORM) environment.

Manage Hibernate Once/Resume Many

Describes managing Hibernate Once/Resume Many (HORM) from the command-line and by using the EWF API.

EWF Performance Considerations

Describes ways that you can improve the performance of EWF.

EWF Modes

Describes the different modes of EWF, and how to implement each type.

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