Hardware manual

Windows XP Embedded Reference Manual
1-6
4 Setting the Write Filter (Write Protection)
XPE has the Write Filter (The function to avoid writing into HDD or Flash Memory).
When the Write Filter is effective, it prevents writing into CF card.
The Write Filter protects the CF card from being damaged or failing.
• When data is written in the devices (except CF card) that are not protected by the Write
Filter, turning off the power may cause damage of the data.
)"10 Notes on turning off the power" (Page 1-19)
• When making settings, adding a driver, or changing registries, be sure to disable the
Write Filter. If the Write Filter is enabled, the settings regarding the OS will be all can-
celed when OS restarts. When changing the setting, be sure to disable the Write Filter
setting.
Enabling the Write Filter after changing the setting is recommended.