An EFS is abbreviation of Encrypted File System included in Microsoft Windows operating system a part of NTFS file system.

There are 4 other file types using
the EFS file extension!

efs icon.efs - Ensoniq SQ80 data

empty icon.efs - EasyFlow data

empty icon.efs - eSignal Formula Script file

empty icon.efs - Effective File Search file

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EFS file extension - Microsoft Windows Encrypting File System

What is efs file? How to open efs files?

File type specification:

Encoded and encrypted file type icon Encoded and encrypted file type

The EFS is abbreviation of Encrypted File System included in Microsoft Windows operating system from Windows 2000 as a part of NTFS (New Technology File System) that provides file system level encryption of data.

By default the EFS is disabled in Windows, but encryption can be enabled by users on a per-file, per-directory, or per-drive basis.

Updated: October 8, 2018

The default software associated to open efs file:

Microsoft Windows icon

Microsoft Corporation logoMicrosoft Windows  Microsoft Windows software

Company or developer:
Microsoft Corporation

A family of operating systems developed by the Microsoft Corp. The first Windows was released in 1985 as a GUI add-on to MS-DOS.  MS-DOS based Windows versions were developed to 2000, when was released the last version called Windows ME. Windows based on NT core started in 1993. Windows NT family are developed to these days, the latest version is called Windows 10.

Help how to open:

Probably not meant to be accessed by the user.

How to convert:

Probably cannot be converted to anything else.

List of software applications associated to the .efs file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open efs file, edit efs file, convert efs file, view efs file, play efs file etc. (if exist software for corresponding action in File-Extensions.org's database).

Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting efs files.

Software which is able to fix, repair or recover efs file - Microsoft Windows Encrypting File System

Programs supporting the exension efs on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Advanced EFS Data Recovery for recover efs file action.

Microsoft Windows:

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EFR file extension

File-Extensions.org > Encoded and encrypted file types

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