3 Steps to Download and Fix PEFWssIntegrate.dll DLL Errors

Last Updated: 05/25/2020
[Time to Read Article: 5 minutes]

DLL files such as PEFWssIntegrate.dll are categorized as Win64 DLL (Dynamic link library) files. As a Wss Integration Module file, it was created for use in Intel Security PEF by McAfee, Inc..

The first version of PEFWssIntegrate.dll was released for the Windows 10 Operating System on 08/29/2019 inside McAfee Total Protection 2019 (16.0 R20). This is the most recent release date from McAfee, Inc., according to our records.

In this article, you will find detailed PEFWssIntegrate.dll information, a DLL file troubleshooting guide, and a list of versions that are available for free download.

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File Overview

General Information
File Name: PEFWssIntegrate.dll
File Extension: DLL file extension
Description: Wss Integration Module
Object File Type: Dynamic link library
File Operating System: Win32
MIME Type: application/octet-stream
User Popularity Rating:
Developer and Software Information
Software Developer: McAfee, Inc.
Software Program: Intel Security PEF
Legal Copyright: Copyright © 2017 McAfee, Inc.
File Details
Character Set: Unicode
Language Code: English (U.S.)
File Flags: (none)
File Flags Mask: 0x0017
Entry Point: 0x34b84
Code Size: 373760

What are PEFWssIntegrate.dll Error Messages?

Dynamic Link Library PEFWssIntegrate.dll Errors

PEFWssIntegrate.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like PEFWssIntegrate.dll, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like Setup.exe - to follow. These files were created so that multiple programs (eg. McAfee Total Protection) could share the same PEFWssIntegrate.dll file, saving valuable memory allocation, therefore making your computer run more efficiently.

Unfortunately, what makes DLL files so convenient and efficient, also makes them extremely vulnerable to problems. If something happens to a shared DLL file, either it goes missing or gets corrupted in some way, it can generate a "runtime" error message. Runtime is pretty self-explanatory; it means that these errors are triggered when PEFWssIntegrate.dll is attempted to be loaded either when McAfee Total Protection is starting up, or in some cases already running. Some of the most common PEFWssIntegrate.dll errors include:

Your PEFWssIntegrate.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with McAfee Total Protection), or deleted by a malware infection. Furthermore, PEFWssIntegrate.dll file corruption could be caused from a power outage when loading McAfee Total Protection, system crash while loading PEFWssIntegrate.dll, bad sectors on your storage media (usually your primary hard drive), or quite commonly, a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

How to Fix PEFWssIntegrate.dll Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your PEFWssIntegrate.dll issue. These troubleshooting steps are listed in the recommended order of execution.

Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. When you see the search box, type "System Restore" and press "ENTER".
  3. In the search results, find and click System Restore.
  4. Please enter the administrator password (if applicable / prompted).
  5. Follow the steps in the System Restore Wizard to choose a relevant restore point.
  6. Restore your computer to that backup image.

If the Step 1 fails to resolve the PEFWssIntegrate.dll error, please proceed to the Step 2 below.

Step 2: If recently installed McAfee Total Protection (or related software), uninstall then try reinstalling McAfee Total Protection software.

You can uninstall McAfee Total Protection software by following these instructions (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. In the search box, type "Uninstall" and press "ENTER".
  3. In the search results, find and click "Add or Remove Programs"
  4. Find the entry for McAfee Total Protection 2019 (16.0 R20) and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall McAfee Total Protection software.

If this Step 2 fails as well, please proceed to the Step 3 below.

McAfee Total Protection 2019 (16.0 R20)

McAfee, Inc.

Step 3: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many PEFWssIntegrate.dll error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

  1. Hit the Windows Start button
  2. In the search box, type "Update" and press "ENTER".
  3. In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
  4. If updates are available for download, click "Install Updates".
  5. After the update is completed, restart your PC.

If Windows Update failed to resolve the PEFWssIntegrate.dll error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

If Those Steps Fail: Download and Replace Your PEFWssIntegrate.dll File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate PEFWssIntegrate.dll file version. We maintain a comprehensive database of 100% malware-free PEFWssIntegrate.dll files for every applicable version of McAfee Total Protection. Please follow the steps below to download and properly replace you file:

  1. Locate your Windows operating system version in the list of below "Download PEFWssIntegrate.dll Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate McAfee Total Protection folder location:
    Windows 10: C:\Program Files\Common Files\McAfee\PEF\CORE\
  4. Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.

GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve PEFWssIntegrate.dll problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.

Download PEFWssIntegrate.dll Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying PEFWssIntegrate.dll to your appropriate Windows system directory. McAfee, Inc. typically does not release McAfee Total Protection DLL files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing PEFWssIntegrate.dll and all other DLL files for McAfee Total Protection. An incorrectly installed DLL file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows 10

Files Related to PEFWssIntegrate.dll

DLL Files Related to PEFWssIntegrate.dll

File Name Description Software Program (Version) File Size (bytes) File Location
System.Drawing.ni.dll Dynamic Link Library McAfee Total Protection 2019 (16.0 R20) 2320384 C:\Windows\assembly\NativeImages_v2.0.50727_64\...
mcagent.dll McAfee Integrated Security Platform McAfee SecurityCenter (17,10,0,0) 2102576 C:\Program Files\McAfee\MSC\
mcmscins.dll McAfee Integrated Security Platform McAfee SecurityCenter (17,10,0,0) 2877304 C:\Program Files\McAfee\MSC\
mcvsoutil.dll McAfee VirusScan Utility McAfee Cloud AV (22,5,0,0) 1737496 C:\Program Files\McAfee\MfeAV\
api-ms-win-core-synch-... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.17134.12) 11624 C:\Users\Tester\AppData\Local\Microsoft\OneDriv...

Other Files Related to PEFWssIntegrate.dll

File Name Description Software Program (Version) File Size (bytes) File Location
CBS.log Log McAfee Total Protection 2019 (16.0 R20) 985052 C:\Windows\Logs\CBS\
setuperr.log Log McAfee Total Protection 2019 (16.0 R20) 5179 C:\Windows\Panther\NewOs\Panther\
setupact.log Log McAfee Total Protection 2019 (16.0 R20) 1304398 C:\Windows\Panther\NewOs\Panther\
setupact.log Log McAfee Total Protection 2019 (16.0 R20) 217108 C:\Windows\Logs\DPX\
api-ms-win-core-profil... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.17134.12) 10600 C:\Users\Tester\AppData\Local\Microsoft\OneDriv...


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