How to Download and Fix deviceaccess.dll?

Sometimes Windows system displays error messages regarding corrupted or missing deviceaccess.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 deviceaccess.dll file can therefore effect in failed execution of the started process.

deviceaccess.dll file Device Broker And Policy COM Server. 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 deviceaccess.dll related errors on your device. You can also download deviceaccess.dll file compatible with Windows 10, Windows 8.1, Windows 8 devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 10, Windows 8.1, Windows 8

File info

General information
Filename deviceaccess.dll
File extension DLL
Description Device Broker And Policy COM Server
Program Microsoft® Windows® Operating System
Author Microsoft Corporation
MIME type application/octet-stream
File type Executable application
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 deviceaccess.dll file. deviceaccess.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 deviceaccess.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

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



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


Problems related to deviceaccess.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 deviceaccess.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.

deviceaccess.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 deviceaccess.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 deviceaccess.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 deviceaccess.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 deviceaccess.dll file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the deviceaccess.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 deviceaccess.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 deviceaccess.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 deviceaccess.dll file

The last solution is to manually download and replace deviceaccess.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 deviceaccess.dll file.

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

  • Windows 10: C:\Windows\System32\
  • Windows 8.1: C:\Windows\System32\
  • Windows 8: 1: C:\Windows\System32\

If the steps did not solve your deviceaccess.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 deviceaccess.dll
System Windows 10
File size 259584 bytes
Date 2017-03-18
File details
MD5 d2f1229eeaa26b0e23a114996eca3414
SHA1 38b9fa0705427d870ab3a423871e0e4cac267bbe
SHA256 2c24c19249e733c2abc873454af0b80b97fc75a5bf9ef6cb4a5f193f60415bf2
CRC32 a78da327
Example file location C:\Windows\System32\
Filename deviceaccess.dll
System Windows 8.1
File size 155136 bytes
Date 2014-11-21
File details
MD5 867519a6ef0521ab63cdc77fa6e5878d
SHA1 143b2c7661c9b7c4eeff81b2eb626b5b296fa243
SHA256 c849a3a5cbfa8fb10bf222e5240536b8c26c576cc0c8dfe9cc9330f4d213803a
CRC32 110b73c1
Example file location C:\Windows\System32\
Filename deviceaccess.dll
System Windows 8
File size 56320 bytes
Date 2012-07-26
File details
MD5 734ab4fe4f06084a6745805c2a235476
SHA1 1649adcde792f24c89d8778b7a88d817fb5513f6
SHA256 b7e4f195edd6120834e060e36b77e6f9fcccec0c47c304fa140ddf0b7f3fc640
CRC32 cdae4cd0
Example file location 1: C:\Windows\System32\