Any additional feedback? In this article. Handling Encrypted Files and Directories. A file marked encrypted is encrypted by the NTFS file system by using the current encryption driver. Encrypted Files and User Keys. FSRM is a set of tools that help you understand, control and manage the quantity and type of data stored on your servers. FSRM offers:. Specifically, when an authorized user opens an encrypted file, EFS decrypts the file in the background and provides an unencrypted copy to the application.
Authorized users can view or modify the file, and EFS saves changes transparently as encrypted data. BitLocker complements EFS by providing an additional layer of protection for data stored on Windows devices. BitLocker protects devices that are lost or stolen against data theft or exposure, and it offers secure data disposal when you decommission a device.
Go Up. EFS is quite dated technology and has a number of significant hurdles in an environment where you want to encrypt files on a server. It requires all participating users have roaming profiles enabled - which is a deprecated technology. It also requires the server to be trusted for delegation which is a security risk. Lastly, EFS has no way to automatically enable other users to unencrypt a file.
It is a manual process as there is no group permission for EFS or methods to denote a group of files should be readable by others. Thursday, August 20, PM.
How to recovery of the Windows EFS key when the user computer lost, stolen or formatted? As previously mentioned, it is essential to back up your user certificates and recovery key before you use EFS to encrypt anything on your computer or the server.
Once you have backed up these certificates, you can encrypt folders and files either directly or using group policy. The first step in backing up user certificates and recovery keys is to create a domain-based data recovery agent. By default, the local administrator is set as the recovery key. This means that if the machine is lost or stolen, the domain administrator will not be able to access encrypted files.
Instead, it is best to set the domain administrator as the recovery agent. This will open the Add Recovery Agent Wizard. Once you have set the domain recovery agent, you should back up the certificate. To export the domain EFS recovery agent's private key:. Now that you have set the domain recovery agent and backed up the certificate, you can begin to use EFS to help protect files and folders from unauthorized access.
The following sections provide instructions on enabling EFS by selecting specific folders and files and by using group policy. The first is the easier one to implement: select the specific folders or files on your server that you want to encrypt.
These steps are also the same for encrypting folders or files in Windows 7 Professional.
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