Using the Enhanced Write Filter (EWF) utility

In addition to the DOS command-line tool, Windows Embedded includes an EWF utility. You can access the EWF utility through the Windows Control Panel or through the Administrative Tools option for the administrator.

To access the EWF utility using Administrative Tools, follow these steps:

1.Log on as an administrator.

2.Select Start > Control Panel > Performance and Maintenance > Administrative Tools.

3.Click the EWF Manager icon.

4.Use the EWF utility to select Write Filter options.

The EWF utility includes the following buttons:

●Enable EWF

Enables the Enhanced Write Filter so that data written to the protected media is cached in the overlays. The current overlay level becomes 1 as soon as EWF is started, and a new overlay is created at level 1.

●Disable EWF

Disables the overlay on the specified protected volume.

●Overlay configuration

Displays the overlay information and is a combination of the information supplied when executing ewfmgr.exe c: -description and ewfmgr.exe c: -gauge from the DOS prompt.

●Clear boot command

Clears the boot command from the DOS prompt.

●Commit data to volume

Commits all current-level data in the overlay to the protected volume, and resets the current overlay value to 1.

16 Chapter 2 Enhanced Write Filter (EWF)

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HP 2533t Mobile manual Using the Enhanced Write Filter EWF utility
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2533t Mobile specifications

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