Disk Lock - Honeywell Thor VM2 User Manual

Disk Lock

These features are supported on Windows Embedded Standard 7 only.
Configure support for Enhanced Write Filter (EWF) and Hibernate Once Resume Many
(HORM).
EWF write-protects the system volume (C: drive). Though the user may appear to be
able to write to the C: drive, the changes are actually stored in RAM.
HORM provides additional functionality over EWF. When HORM is enabled the Thor
VM2 resumes from the hibernate image rather than restarting,
Current State
Lists the current state of the specified volume, i.e.: EWF Enabled/Disabled, HORM
Active/Inactive.
Tap the Apply button to apply any changes made. A restart may be required for the
changes to take effect. If so, a warning box is displayed with an option to restart now or
restart later. If restart later is selected, the changes do not take effect until after the
restart. At anytime before the restart, returning to this control panel and tapping Cancel
discards those changes.
Tap Cancel to exit without making any changes.
The disk lock options are detailed below. If prompted with a User Access Control prompt
when opening this control panel, tap Yes to allow the program to make changes.
Save changes to locked disk and update HORM image
Use this option to save changes to the previous HORM image. If this option is selected,
the Thor VM2 must be restarted. After the restart, select Hibernate the Thor VM2 to
update the HORM image.
Lock disk (enable EWF), standard hibernate
EWF is enabled but HORM is inactive.:
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Thor VM2 with with Microsoft Windows 7 or Windows Embedded Standard User Guide
The user can make changes to drive C:. These changes are stored in RAM rather than
written to the C: drive,
These changes persist across a Hibernate cycle.
These changes are lost after a Restart or Shutdown cycle.
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