Using the Enhanced Write Filter HP Windows® XP Embedded-based thin clients: t5630 t57x0 Abstract.............................. 2 Introduction............................2 Benefits of the Enhanced Write Filter ...................... 2 Enhanced Write Filter Status Service ...................... 3 Enhanced Write Filter GUI ........................4 EWF GUI Buttons ..........................5 DOS Command-line Tool Boot Commands....................
Abstract This paper contains instructions for using the Enhanced Write Filter console application command-line tool, the Enhanced Write Filter GUI and the Enhanced Write Filter status service. Introduction Windows XP Embedded includes the Enhanced Write Filter (EWF) console application command-line tool, Ewfmgr.exe.
Enhanced Write Filter Status Service This service creates an icon in the System Tray that shows the status of EWF. The EWF Status icon will appear as a red “lock” when disabled, a green “lock” when enabled, and a yellow “lock” when the state is set to change on the next boot.
Enhanced Write Filter GUI The EWF GUI can be accessed through the Control Panel or the Administrative Tools option for the administrator. To access the EWF GUI, perform the following steps: Log in as an administrator. Select Start > Control Panel > Other Control Panel Options or Start > Control Panel > Performance and Maintenance >...
EWF GUI Buttons The current version of the EWF GUI includes the following buttons: Button Description Enable EWF This button is the same as executing ewfmgr.exe c: -Enable from the DOS prompt. Disable EWF This button is the same as executing ewfmgr.exe c: -Disable from the DOS prompt. Overlay Configuration This button simply displays the Overlay information and is a combination of the information supplied when executing ewfmgr.exe c: -Description and ewfmgr.exe c: -Gauge...
Using Boot Commands To use the EWF manager boot commands, type the following syntax in a command prompt: EWFMGR <drive-letter> -[boot command]. Note Because the EWF manager commands are executed on the next boot, you must reboot the system for the command to take effect.