Enhance Data Security with Unified Write Filter Windows 11

In an era where data security is paramount, Windows 11 offers a powerful feature known as Unified Write Filter (UWF) that provides an extra layer of defense for your digital assets.


By Zelia / Updated on November 8, 2023

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What is Unified Write Filter Windows 11

Unified Write Filter (UWF) is a protective feature in Windows 11 designed to prevent any permanent changes to the system's hard drive or protected volumes. By implementing UWF, Windows 11 can effectively function in a state where all write operations are redirected to a separate overlay, ensuring the system's core files remain unchanged. It acts as a secure shield against unintended modifications or data corruption, making it particularly valuable in environments where system stability and data integrity are paramount.


Benefits of Unified Write Filter Windows 11

Windows 11 Unified Writer Filter is a powerful feature that offers a range of benefits for individuals and organizations. Whether you're using Windows 11 on a personal computer or in a business environment, UWF can significantly enhance data security and system stability. Here are some of the key benefits of Unified Write Filter in Windows 11:

  • Data Protection: UWF shields your data from accidental alterations or deletions, preserving your critical files and configurations.
  • Enhanced Security: It provides an added layer of security against malware, as any changes made are discarded upon a system reboot.
  • Public or Shared Environments: UWF is invaluable in public or shared computer setups, such as libraries or kiosks, where system consistency and data security are crucial.
  • Reduced Maintenance: With UWF, there's less need for ongoing system maintenance, as it prevents unwanted changes, reducing the workload for administrators.

How to use Unified Write Filter Windows 11

Using UWF in Windows 11 can help protect your system's data and maintain its integrity by preventing permanent changes to the hard drive or protected volumes. Here's a step-by-step guide on how to enable and configure UWF effectively:

How to turn on Unified Write Filter

Step 1. Begin by selecting the Start button and typing Turn Windows features into the search box. Then, choose Turn Windows features on or off from the search results at the top.

Step 2. Within the Windows Features window, locate the Device Lockdown category and mark the checkbox beside Unified Write Filter.

Note: If you wish to deactivate this feature, you can simply uncheck the Unified Write Filter box in the same location. Alternatively, you can execute the Unified Write Filter commands "uwfmgr filter disable" in an elevated Command Prompt window and restart your computer to apply the change.

Step 3. Finally, click OK to confirm the change and close the window.


How to use UWF for a drive on Windows 10

Step 1. Launch the elevated Command Prompt window.

Step 2. Duplicate and insert the provided command within the CMD window, then press the Enter key to activate write protection for the designated drive. If necessary, substitute "C:" with the drive you intend to safeguard.

uwfmgr.exe volume protect C:

Step 3. Reboot your computer, and any data written to the disk during the current session will only remain accessible until the subsequent system startup.

Step 4. To verify whether UWF is active for your chosen drive, execute the following command:

uwfmgr.exe get-config

Security and privacy considerations for Windows Server

As data security becomes increasingly vital in the digital world, organizations need comprehensive strategies to protect their information. AOMEI Cyber Backup is a robust solution designed to address these needs, and this section explores the key security and privacy considerations when implementing it in a Windows Server environment.

◉Centralized Backup Functions: Besides physical machine backup, it also supports VM backup and SQL database backup.
◉Automated Execution: You can schedule an automatic backup task to back up your Windows system for settled periods.
◉Multiple Storage Destinations: Easily backup to local or network destinations according to your need.
◉Restore Entire System: Restore instant entire system from any selected restore points to an original or new location.

You can click the following button to download the freeware version to experience its functionality.

Download FreewareWindows Server & PC
Secure Download

* Both free and paid version of AOMEI Cyber Backup support Windows Server 2016/2019/2022/11,10,8,7.

Steps to back up and restore your Windows Server

1. Download and install AOMEI Cyber Backup Agent on your computer at first.


2. After installation, access to Source Device >> Windows. It will automatically appear if the device is compatible and online. Otherwise, you need add Windows device by clicking +Add Windows Device to enter your Device Information and User Information.


3. Click Backup Task >> + Create New Task >> System Backup.


4. Choose the storage destination (Add a new local storage/Add a new network storage) according to your need.


5. On Schedule window, you can set up different backup strategies based on full, incremental or differential backup. Additionally, you can choose from various backup frequencies, such as daily, weekly, monthly, and monthly intervals, tailoring your backup task to align precisely with your requirements. This versatile combination of features empowers you to create a customized backup plan to suit your specific needs.


6. Click Start Backup to perform the operation, you can select Add the schedule and start backup now, or Add the schedule only.


7. Click right on the task and select Restore to configure the basic information. Once you've finalized the settings, click Start Restore.



Unified Write Filter Windows 11 is a powerful tool for safeguarding your data and enhancing the security of your system. By understanding what UWF is, leveraging its benefits, implementing it effectively, and considering security and privacy aspects, you can create a robust defense against data loss, system instability, and unauthorized changes. UWF is a valuable addition to the data security toolkit of Windows Server users, ensuring data integrity and system stability in an ever-evolving digital landscape.

Zelia · Editor
Zelia is an editor from AOMEI Technology.She mainly writes articles about virtual machine. Writing is one of her hobbies and she wants her articles to be seen by more people. In her spare time, she likes to draw and listen to music, and it is a pleasure for her to focus on her own world.