# Why You Should Disable Windows Encrypted File System (EFS) Protect your data from permanent loss by disabling the aging EFS feature today. - **Source:** [PCWorld](https://www.pcworld.com) - **Published:** 2026-11-09 - **Topic:** [technology](https://brifing.si/c/technology) - **Original article:** - **On Brifing:** https://brifing.si/s/2ddfd9c7-8b69-47c3-87a4-7d6c8bf72a99 ## The Risks of EFS Windows Encrypted File System, known as EFS, allows users to encrypt individual files or folders via simple right-click properties. While convenient, this tool poses a significant risk of permanent data loss if the decryption key is misplaced. Unlike full-drive encryption, EFS operates on a granular level, often leading to forgotten encrypted files. ## EFS Versus BitLocker BitLocker encrypts an entire drive, providing a more robust and manageable security solution for modern Windows users. In contrast, EFS targets specific items, which can cause confusion in multi-user environments. Many users have migrated to BitLocker or third-party alternatives like VeraCrypt to avoid the specific pitfalls associated with EFS key management. ## Dangers of Account Deletion The primary danger with EFS occurs when a user encrypts important data and subsequently deletes their Windows account without backing up the decryption key. Once the account is removed, the data becomes permanently inaccessible. This scenario is particularly problematic on shared computers or company PCs where multiple users manage different local accounts. ## Identifying Encrypted Files Before disabling EFS, you must verify if any files are currently encrypted on your system. Use the Nirsoft Search My Files tool, which requires no installation. Within the search options, set the attribute to Encrypted and run the scan. If results appear, you must decrypt these files before proceeding with any configuration changes. ## Accessing Group Policy To disable EFS, you need access to the Group Policy Editor, which is available exclusively on Windows Pro, Education, and Business editions. Search for 'Edit Group Policy' in the taskbar to begin. This tool allows administrators to modify security settings that govern how the operating system handles file encryption and user permissions. ## Configuring Security Settings Navigate through Computer Configuration to Windows Settings, then Security Settings, and finally Public Key Policies. Right-click the Encrypting File System folder and open its properties. Under the file encryption section, select 'Do Not Allow' to restrict the use of EFS. Confirm your changes with OK to apply the new security policy globally. ## Verifying the Restriction Once the policy is applied, the system will prevent any further use of EFS for file protection. If you attempt to encrypt a file or folder in File Explorer, you will receive an error message stating that file encryption is disabled. This confirms that your system is now protected against accidental EFS usage. ## Ensuring Data Accessibility Disabling EFS is a proactive measure to ensure that data remains accessible across different user accounts and system changes. By removing the ability to use this aging feature, you eliminate the risk of locking yourself out of critical files. Always prioritize modern, full-disk encryption methods for better long-term data security and management. ## Sources covering this story - https://www.pcworld.com/article/3272340/sharing-a-windows-pc-disable-efs-before-someone-loses-files-for-good.html — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._