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Entry type: FAQ Entry ID: 109759859, Entry date: 04/11/2019
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How do you use the Unified Write Filter in Windows 10?

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You can use the Unified Write Filter in Windows 10 by utilizing the input prompt or the Windows PowerShell.

The Unified Write Filter (UWF) is a configurable write filter that makes it possible to provide write protection for data carriers like hard disks, SSDs, SIMATIC IPC CFast cards or external SATA drives.

Note
External interchangeable media like USB sticks and other flash drives that are recognized by the operating system as interchangeable media are not supported. 

The UWF combines the advantages of older write filters like Enhanced Write Filter (EWF) and File Based Write Filter (FBWF). It prevents all write access to protected media and diverts the data to a buffer memory (overlay). This increases the reliability and stability of the system and service life of write-sensitive media like SSDs and CFast cards.

Instructions
In the following documentation you will be shown how to install and configure the Unified Write Filter.

  Documentation (1,1 MB)

Tool for using the UWF
The following file includes the tool "SIMATIC UWF Manager" for using the UWF via a graphic user interface.
How to use the tool is described in the documentation linked above.

 Registration required  SIMATIC_UWF-Manager.zip (157.6 KB)

SHA-256 checksum: 813C0063EB7B4E7194A463F234A3B78F35AA49E650E3A2F98B346A87DD916F42


Additional Keywords
EWF, FBWF, UWF, Write filter, Write protection, Hardening

Security information
In order to protect technical infrastructures, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art IT security concept. Siemens’ products and solutions constitute one element of such a concept. For more information about cyber security, please visit
https://www.siemens.com/cybersecurity#Ouraspiration.
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