Protect a Windows XP Embedded Image Using Write Filters

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The Enhanced Write Filter (EWF) and the File Based Write Filter (FBWF) are two Windows XP Embedded features which provide a means of protecting a volume from writes. This enables scenarios such as booting from read-only media such as CD-ROMs and eliminating wear on flash media from writes. The Enhanced Write Filter protects the volume at the sector level. The File Based Write Filter allows you to specify a list of files and folders to which writes should be persisted, and when combined with the Registry Filter, allows persistence of specific registry keys while protecting the rest of the OS. This talk will help you decide which Write Filter fits your scenario. Learn the benefits of each Write Filter, and how to configure and effectively use them through interactive demonstrations. We also cover commonly encountered scenarios and tips for effectively using the Write Filters.

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