Troubleshooting FortiClient_Diagnostic_Tool.exe: How To Guide (Free Download)

Last Updated: 11/29/2023
[Time Needed for Reading: ~4-6 minutes]

FortiClient_Diagnostic_Tool.exe is considered a type of FortiClient Diagnostic Tool file. It is most-commonly used in FortiClient Diagnostic Tool developed by Fortinet. It uses the EXE file extension and is considered a Win64 EXE (Executable application) file.

The first release in the Windows 10 Operating System for FortiClient_Diagnostic_Tool.exe was on 08/08/2013 inside FortiClient 5.0.5. This file marks the latest update from Fortinet, according to our records.

In this short article, you will discover detailed file information, steps for troubleshooting EXE file problems with FortiClient_Diagnostic_Tool.exe, and list of free downloads for every version that exists in our comprehensive file directory.

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File Overview


General Information
File Name: FortiClient_Diagnostic_Tool.exe
File Extension: EXE file extension
Description: FortiClient Diagnostic Tool
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: Fortinet Inc.
Software Program: FortiClient Diagnostic Tool
Legal Copyright: 2019 Fortinet Inc. All rights reserved.
File Details
Character Set: Unicode
Language Code: English (U.S.)
File Flags: (none)
File Flags Mask: 0x003f
Entry Point: 0x25150
Code Size: 290816


What are FortiClient_Diagnostic_Tool.exe Error Messages?


FortiClient_Diagnostic_Tool.exe Runtime Errors

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

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

Some of the most common FortiClient_Diagnostic_Tool.exe errors include:

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


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



How to Fix FortiClient_Diagnostic_Tool.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 FortiClient_Diagnostic_Tool.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):

  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 FortiClient_Diagnostic_Tool.exe error, please proceed to the Step 2 below.

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

You can uninstall FortiClient 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 FortiClient 5.0.5 and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall FortiClient software.

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

FortiClient 5.0.5

Fortinet

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 FortiClient_Diagnostic_Tool.exe 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 FortiClient_Diagnostic_Tool.exe 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 FortiClient_Diagnostic_Tool.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 FortiClient_Diagnostic_Tool.exe file version. We maintain a comprehensive database of 100% malware-free FortiClient_Diagnostic_Tool.exe files for every applicable version of FortiClient. 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 FortiClient_Diagnostic_Tool.exe Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate FortiClient folder location:
    Windows 10: C:\Program Files\Fortinet\FortiClient\
  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 FortiClient_Diagnostic_Tool.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.



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


CAUTION : We strongly advise against downloading and copying FortiClient_Diagnostic_Tool.exe to your appropriate Windows system directory. Fortinet typically does not release FortiClient 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 FortiClient_Diagnostic_Tool.exe and all other EXE files for FortiClient. 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


Files Related to FortiClient_Diagnostic_Tool.exe


EXE Files Related to FortiClient_Diagnostic_Tool.exe

File Name Description Software Program (Version) File Size (bytes) File Location
fmon.exe FortiClient Realtime AntiVirus Protection FortiClient real-time file system monitor (6.2.3.0912) 235408 C:\Windows\System32\
fcaptmon.exe FortiClient Sandbox Agent FortiClient Sandbox Agent (6.2.3.0912) 667536 C:\Windows\System32\
OneDrive.exe Microsoft OneDrive Microsoft OneDrive (19.222.1110.0006) 1584488 C:\Users\Tester\AppData\Local\Microsoft\Windows\
fortiae.exe FortiClient Anti-Exploit FortiClient Anti-Exploit (6.2.3.0912) 390544 C:\Windows\System32\
FileCoAuth.exe Microsoft OneDriveFile Co-Authoring Executable Microsoft OneDrive (19.222.1110.0006) 506216 C:\Users\Tester\AppData\Local\Microsoft\Windows\

Other Files Related to FortiClient_Diagnostic_Tool.exe

File Name Description Software Program (Version) File Size (bytes) File Location
setupact.log Log FortiClient 5.0.5 62521 C:\Windows\Panther\UnattendGC\
setupapi.dev.log Log FortiClient 5.0.5 727031 C:\Windows\inf\
WmiApRpl.ini Windows Initialization FortiClient 5.0.5 29736 C:\Windows\inf\WmiApRpl\0009\
WmiApRpl.h C/C++/Objective-C Header FortiClient 5.0.5 3444 C:\Windows\System32\wbem\Performance\
api-ms-win-core-profil... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.10586.15) 18824 C:\Program Files\Fortinet\FortiClient\


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