Repair and Download efsadu.dll Now

Sometimes Windows system displays error messages regarding corrupted or missing efsadu.dll files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent efsadu.dll file can therefore effect in failed execution of the started process.

efsadu.dll file File Encryption Utility. The file was developed by for use with software. Here you will find detailed information about the file and instructions how to proceed in the event of efsadu.dll related errors on your device. You can also download efsadu.dll file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista, Windows XP devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista, Windows XP

File info

General information
Filename efsadu.dll
File extension DLL
Description File Encryption Utility
Program Microsoft® Windows® Operating System
Author Microsoft Corporation
MIME type application/octet-stream
File type Dynamic link library
System Windows NT 32-bit
Copyrights © Microsoft Corporation. All rights reserved.
Character set Unicode
Language cod English (U.S.)

There are various types of errors related to efsadu.dll file. efsadu.dll file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to efsadu.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

  • efsadu.dll is corrupted
  • efsadu.dll cannot be located
  • Runtime Error - efsadu.dll
  • efsadu.dll file error
  • efsadu.dll file cannot be loaded. Module was not found
  • cannot register efsadu.dll file:
  • efsadu.dll file could not be loaded
  • efsadu.dll file doesn't exist



Application could not be started because efsadu.dll file is missing. Reinstall the application to solve the problem.


Problems related to efsadu.dll can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing efsadu.dll file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

efsadu.dll file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Virus Scan

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with efsadu.dll file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Windows Update

Installing relevant Microsoft Windows patches and updates may solve your problems related to efsadu.dll file. Use dedicated Windows tool to perform the update.

  1. Go to the Windows "Start" menu
  2. Type "Windows Update" in the search field
  3. Choose the appropriate software program (name may vary depending on your system version)
  4. Check if your system is up to date. If any unapplied updates are listed, install them immediately.
  5. After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of efsadu.dll or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to efsadu.dll file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the efsadu.dll file with properly working version. To use the tool:

  1. Go to the Windows "Start" menu
  2. Type "cmd" in the search field
  3. Locate "Command Prompt" result – don't run it yet:
  4. Click the right mouse button and select "Run as Administrator" option
  5. Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Windows Recovery

Another approach is to restore system to previous state, before the efsadu.dll file error occured. In order to restore your system, follow the instructions below

  1. Go to the Windows "Start" menu
  2. Type "System Restore" in the search field
  3. Start the system restore tool – it's name may differ depending on version of the system
  4. The application will guide you through the process – read the messages carefully
  5. After the process has finished, restart your computer.

If all the above-mentioned methods failed and the efsadu.dll file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace efsadu.dll file

The last solution is to manually download and replace efsadu.dll file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded efsadu.dll file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of efsadu.dll file example directory paths.

  • Windows 10: C:\Windows\System32\
  • Windows 8.1: C:\Windows\System32\
  • Windows 8: 1: C:\Windows\System32\
  • Windows 7: C:\Windows\SysWOW64\
  • Windows 7: C:\Windows\SysWOW64\
  • Windows Vista: ---
  • Windows Vista: ---
  • Windows XP: ---

If the steps did not solve your efsadu.dll file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

Filename efsadu.dll
System Windows 10
File size 106496 bytes
Date 2017-03-18
File details
MD5 000c19645b2c6bedfd3c3377be643362
SHA1 08fed032881495f66f4d385a9033aac76e76e0f1
SHA256 d861003a106a526b6f9072029f36399190869ff0a18f926bc1d5a2d7cb70b698
CRC32 15993d28
Example file location C:\Windows\System32\
Filename efsadu.dll
System Windows 8.1
File size 88576 bytes
Date 2014-11-21
File details
MD5 9851189bb18ed67a5b33e09f6c0fe591
SHA1 682e9e8e1e8ff825450bcb04f4f935114a59fcf5
SHA256 9186c920ac0f61e21f67fe9a6280ddd3fe700ceb861706c17c223900baa6326a
CRC32 9f9e205c
Example file location C:\Windows\System32\
Filename efsadu.dll
System Windows 8
File size 81920 bytes
Date 2012-07-26
File details
MD5 20f9dbb2514e951e0aab929e2d666294
SHA1 512c7a2c2cbb7d7456f169edc188a1a7fc4a07bd
SHA256 230da5b10dc9e58774adc1bec40ea339d639fec6129f63dc55e3b229372d8a19
CRC32 c4c029e3
Example file location 1: C:\Windows\System32\
Filename efsadu.dll
System Windows 7
File size 82944 bytes
Date -0001-11-30
File details
MD5 52a58dc1bfaf31bb2022f0de2e656d41
SHA1 15291078bbf7f7d1e986b71dd889401b197bc2c4
SHA256 513198f050221660d79395dc1ba818e1372616fa0bb7a5001aeb3145eac7199b
CRC32 d49b1d2b
Example file location C:\Windows\SysWOW64\
Filename efsadu.dll
System Windows 7
File size 97280 bytes
Date 2009-07-14
File details
MD5 a390cb325bed05da64d1471e9949cac5
SHA1 6c99855ff49f3e3fd286e0b97b54172d71ae8ea5
SHA256 908a05ee8571495d735b156653d4e1ab149faef2991ab1dd135ce18c36f89a8d
CRC32 f4bafc52
Example file location C:\Windows\SysWOW64\
Filename efsadu.dll
System Windows Vista
File size 86528 bytes
Date -0001-11-30
File details
MD5 00a737302c14977a7b3f49cd982c710d
SHA1 41f8370cc52143d341ecc78114d8382d99f5603e
SHA256 31a7cd2a34dbe7a320a59576f5d71310e888aa4c4582c08611629fa29d2363f2
CRC32 7e295a1b
Example file location ---
Filename efsadu.dll
System Windows Vista
File size 101376 bytes
Date 2008-01-21
File details
MD5 b59ca10a64203493c6e0a02c17f6ece7
SHA1 75d4e0d49e4a880c5767764e2c734be1ea0ea13a
SHA256 20b563a2beeeda2ad9c56e0dd9e5b7a6413b494b5f68deb26985fcc8cdc9695f
CRC32 1d0acecb
Example file location ---
Filename efsadu.dll
System Windows XP
File size 26624 bytes
Date 2008-04-14
File details
MD5 0c5839dff864e280cf958da67de85126
SHA1 6fe321600205279563ea38ac65731dbcf1cc8efa
SHA256 3edb88e199b1fc6775b82fdc5e1bfb8f26835bb930e512e555cba6f19ebe5aad
CRC32 06c4f26b
Example file location ---