Repair Eap3Host.exe Issues (How to Download and Fix)

Last Updated: 11/26/2023
[Time to Read: ~3-5 minutes]

Eap Third Party Surrogate Host files, such as Eap3Host.exe, are considered a type of Win32 EXE (Executable application) file. They are associated with the EXE file extension, developed by Microsoft for Microsoft® Windows® Operating System.

Eap3Host.exe was first released for Windows 7 Operating System on 07/22/2009 with Windows 7. The latest file version for Windows 10 is v10.0.15063.0 (WinBuild.160101.0800) released on 07/29/2015. Eap3Host.exe is packaged with Windows 10, Windows 8.1, and Windows 8.

Please see below for more detailed information, EXE file troubleshooting instructions, and free downloads of different versions of Eap3Host.exe.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	Eap3Host.exe
File Extension:	EXE file extension
Description:	Eap Third Party Surrogate Host
Object File Type:	Executable application
File Operating System:	Windows NT 32-bit
MIME Type:	application/octet-stream
User Popularity Rating:

Developer and Software Information
Software Developer:	Microsoft Corporation
Software Program:	Microsoft® Windows® Operating System
Legal Copyright:	© Microsoft Corporation. All rights reserved.

File Details
Character Set:	Unicode
Language Code:	English (U.S.)
File Flags:	(none)
File Flags Mask:	0x003f
Entry Point:	0x1b20
Code Size:	5120

View Other Eap3Host.exe Information

File Info	Description
File Size:	12 kB
File Modification Date/Time:	2017:03:18 18:19:13+00:00
File Inode Change Date/Time:	2017:11:05 07:07:54+00:00
File Type:	Win32 EXE
MIME Type:	application/octet-stream
Warning:	Possibly corrupt Version resource
Machine Type:	Intel 386 or later, and compatibles
Time Stamp:	2071:07:25 12:01:16+00:00
PE Type:	PE32
Linker Version:	14.10
Code Size:	5120
Initialized Data Size:	6144
Uninitialized Data Size:	0
Entry Point:	0x1b20
OS Version:	10.0
Image Version:	10.0
Subsystem Version:	10.0
Subsystem:	Windows GUI
File Version Number:	10.0.15063.0
Product Version Number:	10.0.15063.0
File Flags Mask:	0x003f
File Flags:	(none)
File OS:	Windows NT 32-bit
Object File Type:	Executable application
File Subtype:	0
Language Code:	English (U.S.)
Character Set:	Unicode
Company Name:	Microsoft Corporation
File Description:	Eap Third Party Surrogate Host
File Version:	10.0.15063.0 (WinBuild.160101.0800)
Internal Name:	Eap3Host
Legal Copyright:	© Microsoft Corporation. All rights reserved.
Original Filename:	Eap3Host.EXE
Product Name:	Microsoft® Windows® Operating System
Product Version:	10.0.15063.0

^✻ Portions of file data provided by Exiftool (Phil Harvey) distributed under the Perl Artistic License.

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What are Eap3Host.exe Error Messages?

Eap3Host.exe Runtime Errors

Runtime errors are Windows errors that occur during "runtime". Runtime is pretty self-explanatory; it means that these EXE errors are triggered when Eap3Host.exe is attempted to be loaded either when Windows is starting up, or in some cases already running. Runtime errors are the most common form of EXE error you will encounter using Windows.

In most cases, Eap3Host.exe runtime errors occurring while the program is running will result in the program terminating abnormally. Most of these Eap3Host.exe error messages mean that Windows was either unable to locate this file on startup, or the file is corrupt, resulting in a prematurely-aborted startup process. Generally, Windows will be unable to start without resolving these errors.

Some of the most common Eap3Host.exe errors include:

Eap3Host.exe - Bad Image.
Eap3Host.exe Application Error.
Eap3Host.exe could not be found.
Eap3Host.exe could not be installed.
Eap3Host.exe could not be launched. Class not registered.
Eap3Host.exe could not be started.
Eap3Host.exe failed to initialize properly.
Eap3Host.exe has encountered a problem and needs to close. We are sorry for the inconvenience.
Eap3Host.exe is not a valid Win32 application.
Eap3Host.exe is not running.
Cannot find Eap3Host.exe.
Error starting program: Eap3Host.exe.
Faulting Application Path: Eap3Host.exe.
The file Eap3Host.exe is missing or corrupt.
Windows failed to start - Eap3Host.exe.

System Error

The program can’t start because Eap3Host.exe is missing from your computer. Try reinstalling the program to fix this problem.

Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

Finding the source of the Eap3Host.exe error is key to properly resolving these errors. Although most of these EXE errors affecting Eap3Host.exe will happen during startup, occasionally you will encounter a runtime error while using Microsoft® Windows® Operating System. This can occur due to poor programming on behalf of Microsoft Corporation, conflicts with other software or 3rd-party plug-ins, or caused by damaged and outdated hardware. Also, these types of Eap3Host.exe errors can occur if it has been accidentally moved, deleted, or corrupted by a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

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How to Fix Eap3Host.exe 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 Eap3Host.exe 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):

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

If the Step 1 fails to resolve the Eap3Host.exe error, please proceed to the Step 2 below.

Step 2: Run SFC (System File Checker) to restore the corrupt or missing Eap3Host.exe file.

System File Checker is a utility included with every Windows version that allows you scan and restore corrupted system files. Use the SFC tool to fix missing or corrupt Eap3Host.exe files (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
In the search box, type "cmd" but DO NOT PRESS "ENTER".
Press and hold "CTRL-Shift" on your keyboard while pressing "ENTER".
You'll be prompted with a permission dialog box.
In the box, click "YES".
You should have a black screen with a blinking cursor.
In that black screen, type "sfc /scannow" and hit "ENTER".
SFC will begin scanning for Eap3Host.exe issues and any other system file problems.
Follow any on-screen commands to complete the process.

Please be aware that this scan might take a while, so please be patient while it is working.

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

sfc /scannow

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 Eap3Host.exe error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

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

If Windows Update failed to resolve the Eap3Host.exe error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

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If Those Steps Fail: Download and Replace Your Eap3Host.exe 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 Eap3Host.exe file version. We maintain a comprehensive database of 100% malware-free Eap3Host.exe files for every applicable version of Windows. Please follow the steps below to download and properly replace you file:

Locate your Windows operating system version in the list of below "Download Eap3Host.exe Files".
Click the appropriate "Download Now" button and download your Windows file version.
Copy the file into the appropriate directory for your Windows version:

Windows 7: C:\Windows\System32\
Windows 8: C:\Windows\System32\
Windows 8.1: C:\Windows\System32\
Windows 10: C:\Windows\System32\

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 Eap3Host.exe 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.

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Download Eap3Host.exe Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying Eap3Host.exe to your appropriate Windows system directory. Microsoft typically does not release Windows EXE 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 Eap3Host.exe and all other EXE files for Windows. An incorrectly installed EXE file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows 10

File Name

Software Version

File Version

Architecture

Eap3Host.exe

10.0.15063.0

10.0.15063.0 (WinBuild.160101.0800)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Microsoft® Windows® Operating System
Software Version:	10.0.15063.0
File Version:	10.0.15063.0 (WinBuild.160101.0800)
File Size:	11776
File Date:	03/18/2017
MD5 Checksum:	07917e28cd8c53f6eee9a2b337fe93e9
SHA1 Checksum:	b8efc39990ff3384c87e3f70a4e9010c2d826a97
SHA256 Checksum:	b98fef2a51a31307da2ce733e9936f724e7579f6ae3cc00e3859791f67258ee3
CRC32:
File Directory Location:	C:\Windows\System32\

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	10.0
Initialized Data Size:	6144
Linker Version:	14.10
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows GUI
Subsystem Version:	10.0
File Modification Date/Time:	03/18/2017

Windows 8.1

File Name

Software Version

File Version

Architecture

Eap3Host.exe

6.3.9600.17415

6.3.9600.17415 (winblue_r4.141028-1500)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 8.1
Software:	Microsoft® Windows® Operating System
Software Version:	6.3.9600.17415
File Version:	6.3.9600.17415 (winblue_r4.141028-1500)
File Size:	10752
File Date:	11/21/2014
MD5 Checksum:	198756ebaffbaa4008b9a07a38628ef7
SHA1 Checksum:	389436ca8bb21f83a02b1d0392ddfa4e8a63f57b
SHA256 Checksum:	a94a3e8963706dd6e86d1c0007cd7e7d00928118785ffdff8947f5f77d77faeb
CRC32:
File Directory Location:	C:\Windows\System32\

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	6.3
Initialized Data Size:	5632
Linker Version:	11.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows GUI
Subsystem Version:	6.3
File Modification Date/Time:	11/21/2014

Windows 8

File Name

Software Version

File Version

Architecture

Eap3Host.exe

6.2.9200.16384

6.2.9200.16384 (win8_rtm.120725-1247)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 8
Software:	Microsoft® Windows® Operating System
Software Version:	6.2.9200.16384
File Version:	6.2.9200.16384 (win8_rtm.120725-1247)
File Size:	10752
File Date:	07/26/2012
MD5 Checksum:	832baca7ae714cac73be769497f601c4
SHA1 Checksum:	d1aaa1ef4a37e2ac3ee0294fb4ac77d278547775
SHA256 Checksum:	14165a3710e1f758667d03fa12b93f187d7146cf13659f8b20755a057b268586
CRC32:
File Directory Location:	C:\Windows\System32\

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	6.2
Initialized Data Size:	6144
Linker Version:	10.10
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows GUI
Subsystem Version:	6.2
File Modification Date/Time:	07/26/2012

Windows 7

File Name

Software Version

File Version

Architecture

Eap3Host.exe

6.1.7600.16385

6.1.7600.16385 (win7_rtm.090713-1255)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 7
Software:	Microsoft® Windows® Operating System
Software Version:	6.1.7600.16385
File Version:	6.1.7600.16385 (win7_rtm.090713-1255)
File Size:	11776
File Date:	07/14/2009
MD5 Checksum:	a28860c0ed372a14c9c99d75e1f27a60
SHA1 Checksum:	7e86aa24ed0f39a776fbe5851e32c8dec8cc769d
SHA256 Checksum:	b4b8225e5cc6e54bb58e7f82d163f79a3ee13c80289b19e0f9c2e5a9f8922cd3
CRC32:
File Directory Location:	C:\Windows\System32\

File Version, System, and Machine Information
File Type:	Win64 EXE
Image Version:	6.1
Initialized Data Size:	5120
Linker Version:	9.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Windows GUI
Subsystem Version:	6.1
File Modification Date/Time:	07/14/2009

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Files Related to Eap3Host.exe

EXE Files Related to Eap3Host.exe

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
sdclt.exe	Microsoft® Windows Backup	Microsoft® Windows® Operating System (10.0.15063.0)	1129472	C:\Windows\
bcdedit.exe	Boot Configuration Data Editor	Microsoft® Windows® Operating System (6.2.9200.16384)	327680	C:\WINDOWS\Tasks\
Video.UI.exe	Video Application	Entertainment Platform (10.16112.1160.0)	11303792	C:\Windows\System32\spp\store\2.0\cache\
KorIME.exe	Microsoft IME	Microsoft® Windows® Operating System (6.3.9600.17415)	186880	C:\Windows\SysWOW64\en-US\
query.exe	MultiUser Query Utility	Microsoft® Windows® Operating System (6.1.7601.17514)	16384	C:\$WINDOWS.~BT\Sources\Boot\EFI\es-ES\

Other Files Related to Eap3Host.exe

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
OneX_v1.xsd	XML Schema Definition	Windows 8.1	5957	C:\Windows\L2Schemas\
OneX_v1.xsd	XML Schema Definition	Windows XP	5957	C:\Windows\L2Schemas\
WWAN_profile_v1.xsd	XML Schema Definition	Windows 8.1	6201	C:\Windows\L2Schemas\
WLANAP_profile_v1.xsd	XML Schema Definition	Windows 8.1	7548	C:\Windows\L2Schemas\
WLAN_profile_v1.xsd	XML Schema Definition	Windows 8	15591	C:\Windows\L2Schemas\

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