Hitachi HF-W100E Instruction Manual page 106

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4. PRECAUTIONS REGARDING THE OS

When enabling EWF, the items of OS setting change recommended by Microsoft to improve

its performance are shown below. For details on setting change, refer to "EWF Performance

Considerations (Standard 7 SP1)" by Microsoft Corporation.

https://msdn.microsoft.com/en-us/library/ff794096(v=winembedded.60).aspx

1. Change the location of the event log to an unprotected volume.

→ In this equipment, it is already set to record in "H:\SystemLog\Winodws\winevt" in

advance.

2. Change the location of a system pagefile to an unprotected volume.

3. Change the location of temporary file / folder to an unprotected volume.

4. Disable the NTFS last access time stamps.

→ In this equipment, it is set disabled in advance.

5. Disable the Prefetch.

→ In this equipment, Prefetch and SuperFetch are set disabled in advance.

6. Disable system protection and restore settings.

→ In this equipment, it is set disabled in advance.

< NOTE >

・ If you enable the EWF, the used memory will continue to be accumulated

without released. For this reason, periodic restart of the equipment is

necessary.

・ If you enable the EWF, information that is changed by RAS software installed

in HF-W series and commercially available software is also discarded.

Enable EWF after the environment necessary for system operation is ready.

・ Since this equipment does not support hibernation, does not use the HORM

function of EWF. Also, features that operate only in RAM mode can not be

used. For unsupported features, see <Setting command>.

・ When the Windows error recovery processing screen is displayed during EWF

use and OS startup, you can suppress it by executing the following command

from the command prompt of administrator privilege.

"bcdedit.exe /set {current} bootstatuspolicy ignoreallfailures"

・ If volumes do not overlap, it is possible to use EWF and FBWF in coexistence.

・ In addition to the setting commands prepared by the standard, it is also

possible to implement an application for control using the EWF API (sample

code is also published). For details of API, refer to "EWF API (Standard 7

SP1)" by Microsoft Corporation.

https://msdn.microsoft.com/en-us/library/ff793904(v=winembedded.60).aspx

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