41
Using "Windows Embedded Standard 7"
2
2 Using "Windows Embedded Standard 7"
You can also perform this operation by entering “
ewfmgr.exe c: -commitanddisable
” at the
command prompt and restarting your computer.
z
Commit changes to disk.
This item is activated when the
EWF
is running. If this item is selected, the current states of the client
(saved in a cache) are saved to a flash volume. However, the state of
EWF
will not be changed. You
can also perform this operation by entering “
ewfmgr.exe c: -commit
” at the command prompt.
You can view the configurations for the protected volumes by entering “
ewfmgr.exe c:
” at the
command prompt.
File-Based Write Filter (FBWF)
The
File-Based Write Filter (FBWF)
protects the memory of the client from being overwritten by any
unauthorized user. By restricting excessive writing into the memory, the
FBWF
allows you to use the
client for a long time. If you request I/O, the
FBWF
has the client perform its operations using the cache
instead of the memory so that the memory can be protected.
The data saved in the cache is preserved while the client operates normally. It is removed when it is
restarted or exited. To save the changes, you should write the relevant file onto the disk using the commit
command. If you don’t know which file is changed, disable the
FBWF
, change it, and enable it again.
You can control the
FBWF
using the various options of the command at a command prompt.
z
FBWF Configuration
Current FBWF status
: Displays the current status of the
FBWF (Enabled or Disabled)
.
Boot command
: Displays the
FBWF
command that will be performed at the next boot-up.
RAM Used by FBEF
: Displays the size of the RAM the
FBWF
is using. If the current status is
set to "
Disabled
", the used memory is displayed as 0 KB.
Threshold
: Displays the maximum size of the RAM that the
FBWF
can use.
z
FBWF Command
Enable FBWF and reboot the system
: Enables the disabled
FBWF
and restarts the client. If
the client is not restarted, only the boot command is changed to BWF_ENABLE and the current
status is not changed.
Disable FBWF and reboot the system
: Disables the enabled
FBWF
and restarts the client. If
the client is not restarted, only the boot command is changed to FBWF_DISABLE and the
current status is not changed.
Commit files
: Even if the disks are protected by the
FBWF
, you can add or delete the files you
want to save on them. To write the changes onto the disk, click the [
Write the changes to the
disk
] button.
z
Session Status
Current session
: Displays the volumes being protected by the
FBWF
and a list of the folders
and files on those volumes that are excepted from protection by the
FBWF
.
