The Tor Project Tor Browser Bundle EXE obfs4proxy.exe

Obfs4proxy.exe - Download and Fix Runtime Errors

Last Updated: 11/24/2023
[Time Required for Reading: 3.5 minutes]

Windows Executable files, such as obfs4proxy.exe, are considered a type of Win64 EXE (Windows Executable) file. They are associated with the EXE file extension, developed by The Tor Project for Tor Browser Bundle 8.5.5.

obfs4proxy.exe was first released in the Windows 10 Operating System on 09/03/2019 with Tor Browser Bundle 8.5.5. This is the most recent release date from The Tor Project, according to our records.

Please see below for more detailed information, EXE file troubleshooting instructions, and free downloads of different versions of obfs4proxy.exe.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	obfs4proxy.exe
File Extension:	EXE file extension
File Type:	Executable Application
Description:	Windows Executable
MIME Type:	application/octet-stream
User Popularity Rating:

Developer and Software Information
Software Program:	Tor Browser Bundle 8.5.5
Developer:	The Tor Project
Software:	Tor Browser Bundle
Software Version:	8.5.5

File Details
Entry Point:	0x59260
Code Size:	2668032

View Other obfs4proxy.exe Information

File Info	Description
File Size:	5.6 MB
File Modification Date/Time:	2019:11:22 16:52:12+00:00
File Type:	Win64 EXE
MIME Type:	application/octet-stream
Machine Type:	AMD AMD64
Time Stamp:	0000:00:00 00:00:00
PE Type:	PE32+
Linker Version:	3.0
Code Size:	2668032
Initialized Data Size:	243200
Uninitialized Data Size:	0
Entry Point:	0x59260
OS Version:	4.0
Image Version:	1.0
Subsystem Version:	4.0
Subsystem:	Windows command line

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

Optional Offer for WinThruster by Solvusoft | EULA | Privacy Policy | Terms | Uninstall

What are obfs4proxy.exe Error Messages?

obfs4proxy.exe Runtime Errors

Runtime errors are Tor Browser Bundle errors that occur during "runtime". Runtime is pretty self-explanatory; it means that these EXE errors are triggered when obfs4proxy.exe is attempted to be loaded either when Tor Browser Bundle is starting up, or in some cases already running. Runtime errors are the most common form of EXE error you will encounter using Tor Browser Bundle.

In most cases, obfs4proxy.exe runtime errors occurring while the program is running will result in the program terminating abnormally. Most of these obfs4proxy.exe error messages mean that Tor Browser Bundle was either unable to locate this file on startup, or the file is corrupt, resulting in a prematurely-aborted startup process. Generally, Tor Browser Bundle will be unable to start without resolving these errors.

Some of the most common obfs4proxy.exe errors include:

obfs4proxy.exe - Bad Image.
obfs4proxy.exe Application Error.
obfs4proxy.exe could not be found.
obfs4proxy.exe could not be installed.
obfs4proxy.exe could not be launched. Class not registered.
obfs4proxy.exe could not be started.
obfs4proxy.exe failed to initialize properly.
obfs4proxy.exe has encountered a problem and needs to close. We are sorry for the inconvenience.
obfs4proxy.exe is not a valid Win32 application.
obfs4proxy.exe is not running.
Cannot find obfs4proxy.exe.
Error starting program: obfs4proxy.exe.
Faulting Application Path: obfs4proxy.exe.
The file obfs4proxy.exe is missing or corrupt.
Windows failed to start - obfs4proxy.exe.

System Error

The program can’t start because obfs4proxy.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 obfs4proxy.exe error is key to properly resolving these errors. Although most of these EXE errors affecting obfs4proxy.exe will happen during startup, occasionally you will encounter a runtime error while using Tor Browser Bundle 8.5.5. This can occur due to poor programming on behalf of The Tor Project, conflicts with other software or 3rd-party plug-ins, or caused by damaged and outdated hardware. Also, these types of obfs4proxy.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.

Optional Offer for WinThruster by Solvusoft | EULA | Privacy Policy | Terms | Uninstall

How to Fix obfs4proxy.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 obfs4proxy.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 obfs4proxy.exe error, please proceed to the Step 2 below.

Step 2: If recently installed Tor Browser Bundle (or related software), uninstall then try reinstalling Tor Browser Bundle software.

You can uninstall Tor Browser Bundle software by following these instructions (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
In the search box, type "Uninstall" and press "ENTER".
In the search results, find and click "Add or Remove Programs"
Find the entry for Tor Browser Bundle 8.5.5 and click "Uninstall"
Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Tor Browser Bundle software.

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

Tor Browser Bundle 8.5.5

The Tor Project

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 obfs4proxy.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 obfs4proxy.exe error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

Optional Offer for WinThruster by Solvusoft | EULA | Privacy Policy | Terms | Uninstall

If Those Steps Fail: Download and Replace Your obfs4proxy.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 obfs4proxy.exe file version. We maintain a comprehensive database of 100% malware-free obfs4proxy.exe files for every applicable version of Tor Browser Bundle. Please follow the steps below to download and properly replace you file:

Locate your Windows operating system version in the list of below "Download obfs4proxy.exe Files".
Click the appropriate "Download Now" button and download your Windows file version.
Copy this file to the appropriate Tor Browser Bundle folder location:

Windows 10: C:\Users\Tester\Desktop\Tor Browser\Browser\TorBrowser\Tor\PluggableTransports\
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 obfs4proxy.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.

Optional Offer for WinThruster by Solvusoft | EULA | Privacy Policy | Terms | Uninstall

Download obfs4proxy.exe Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying obfs4proxy.exe to your appropriate Windows system directory. The Tor Project typically does not release Tor Browser Bundle 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 obfs4proxy.exe and all other EXE files for Tor Browser Bundle. An incorrectly installed EXE file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Tor Browser Bundle 8.5.5

File Name

Software Version

File Version

Architecture

obfs4proxy.exe

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
File Size:	5843968
File Date:	11/22/2019
MD5 Checksum:	efb21217c4366271a956cd1dedaf4784
SHA1 Checksum:	43f41f777293c2a48233b897600bede6fb8819b1
SHA256 Checksum:	0bc7294846a40b759bfb877169afcd6d657d3a2439f94dd6448293a611855b0c
CRC32:
File Directory Location:	C:\Users\Tester\Desktop\Tor Browser\Browser\To ...

File Version, System, and Machine Information
File Type:	Win64 EXE
Image Version:	1.0
Initialized Data Size:	243200
Linker Version:	3.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Windows command line
Subsystem Version:	4.0
File Modification Date/Time:	11/22/2019

Optional Offer for WinThruster by Solvusoft | EULA | Privacy Policy | Terms | Uninstall

Files Related to obfs4proxy.exe

EXE Files Related to obfs4proxy.exe

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
GetHelp.exe	Windows Executable	Tor Browser Bundle 8.5.5	18432	C:\Program Files\Common Files\Microsoft Shared\...
obfs4proxy.exe	Windows Executable	Tor Browser Bundle 8.5.5	5843968	C:\Program Files\WindowsApps\Microsoft.DesktopA...
OneDriveStandaloneUpda...	Standalone Updater	Microsoft OneDrive (19.174.0902.0013)	2719352	C:\Users\Tester\AppData\Local\Microsoft\Windows\
FileSyncConfig.exe	Microsoft OneDrive Configuration Application	Microsoft OneDrive (19.174.0902.0013)	368248	C:\Users\Tester\AppData\Local\Microsoft\Windows\
FileCoAuth.exe	Microsoft OneDriveFile Co-Authoring Executable	Microsoft OneDrive (19.174.0902.0013)	513656	C:\Users\Tester\AppData\Local\Microsoft\Windows\

Other Files Related to obfs4proxy.exe

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
setuperr.log	Log	Tor Browser Bundle 8.5.5	21283	C:\Windows\Logs\DPX\
api-ms-win-core-sysinf...	ApiSet Stub DLL	Microsoft® Windows® Operating System (10.0.17134.12)	19064	C:\Users\Tester\AppData\Local\Microsoft\OneDriv...
diagwrn.xml	Extensible Markup Language	Tor Browser Bundle 8.5.5	5718	C:\Windows\System32\Sysprep\Panther\
EtwRTEventLog-Applicat...	Microsoft Event Trace Log	Tor Browser Bundle 8.5.5	2264	C:\Windows\System32\LogFiles\WMI\RtBackup\
ntuser.dat	Game Data	Tor Browser Bundle 8.5.5	1310720	C:\Users\Tester\

Optional Offer for WinThruster by Solvusoft | EULA | Privacy Policy | Terms | Uninstall

Browse Other File Extensions in Alphabetical Order : # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

You are downloading trial software. The purchase of a one-year software subscription at the price of $29.97 USD is required to unlock all software features. Subscription auto-renews at the end of the term (Learn more). By clicking the "Start Download" button above and installing "Software", I acknowledge I have read and agree to the Solvusoft End User License Agreement and Privacy Policy.