How to Download and Repair QHACTIVEDEFENSE.EXE-A1B8174D.pf (3 Step Guide)

Last Updated: 12/10/2023
[Time to Read: ~3-5 minutes]

QHACTIVEDEFENSE.EXE-A1B8174D.pf, also known as a Private file, was created by Qihoo 360 Technology for the development of 360 Total Security 10.6.0.1223. PF files fall under under the Archive (Private) file type category.

The initial introduction of QHACTIVEDEFENSE.EXE-A1B8174D.pf released in 360 Total Security 10.6.0.1223 was for Windows 10 on 10/12/2019. This file release marks the latest and most updated version from Qihoo 360 Technology.

In this article, you will find detailed QHACTIVEDEFENSE.EXE-A1B8174D.pf information, a PF file troubleshooting guide, and a list of versions that are available for free download.

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File Overview


General Information
File Name: QHACTIVEDEFENSE.EXE-A1B8174D.pf
File Extension: PF file extension
File Type: Archive
Description: Private
User Popularity Rating:
 
Developer and Software Information
Software Program: 360 Total Security 10.6.0.1223
Developer: Qihoo 360 Technology
Software: 360 Total Security
Software Version: 10.6.0.1223
File Details
File Size (Bytes): 27128
Oldest File Date: 11/30/2019
Latest File Date: 11/30/2019


What are QHACTIVEDEFENSE.EXE-A1B8174D.pf Error Messages?


General QHACTIVEDEFENSE.EXE-A1B8174D.pf Runtime Errors

QHACTIVEDEFENSE.EXE-A1B8174D.pf file errors often occur during the startup phase of 360 Total Security, but can also occur while the program is running. These types PF errors are also known as “runtime errors” because they occur while 360 Total Security is running. Here are some of the most common QHACTIVEDEFENSE.EXE-A1B8174D.pf runtime errors:

Microsoft Visual C++ Runtime Library

Runtime Error!

Program: C:\Windows\Prefetch\QHACTIVEDEFENSE.EXE-A1B8174D.pf

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.


Most PF errors are due to missing or corrupt files. Your QHACTIVEDEFENSE.EXE-A1B8174D.pf file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with 360 Total Security), or deleted by a malware infection. Furthermore, QHACTIVEDEFENSE.EXE-A1B8174D.pf file corruption could be caused from a power outage when loading 360 Total Security, system crash while loading or saving QHACTIVEDEFENSE.EXE-A1B8174D.pf, bad sectors on your storage media (usually your primary hard drive), or malware infection. Thus, it’s critical to make sure your anti-virus is kept up-to-date and scanning regularly.



How to Fix QHACTIVEDEFENSE.EXE-A1B8174D.pf 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 QHACTIVEDEFENSE.EXE-A1B8174D.pf 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 QHACTIVEDEFENSE.EXE-A1B8174D.pf error, please proceed to the Step 2 below.

Step 2: If recently installed 360 Total Security (or related software), uninstall then try reinstalling 360 Total Security software.

You can uninstall 360 Total Security 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 360 Total Security 10.6.0.1223 and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall 360 Total Security software.

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

360 Total Security 10.6.0.1223

Qihoo 360 Technology

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 QHACTIVEDEFENSE.EXE-A1B8174D.pf 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 QHACTIVEDEFENSE.EXE-A1B8174D.pf 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 QHACTIVEDEFENSE.EXE-A1B8174D.pf 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 QHACTIVEDEFENSE.EXE-A1B8174D.pf file version. We maintain a comprehensive database of 100% malware-free QHACTIVEDEFENSE.EXE-A1B8174D.pf files for every applicable version of 360 Total Security. 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 QHACTIVEDEFENSE.EXE-A1B8174D.pf Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate 360 Total Security folder location:
    Windows 10: C:\Windows\Prefetch\
  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 QHACTIVEDEFENSE.EXE-A1B8174D.pf 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 QHACTIVEDEFENSE.EXE-A1B8174D.pf Files (Malware-Tested 100% Clean)


CAUTION : We strongly advise against downloading and copying QHACTIVEDEFENSE.EXE-A1B8174D.pf to your appropriate Windows system directory. Qihoo 360 Technology typically does not release 360 Total Security PF 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 QHACTIVEDEFENSE.EXE-A1B8174D.pf and all other PF files for 360 Total Security. An incorrectly installed PF 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 QHACTIVEDEFENSE.EXE-A1B8174D.pf


PF Files Related to QHACTIVEDEFENSE.EXE-A1B8174D.pf

File Name Description Software Program (Version) File Size (bytes) File Location
Op-SEARCHUI.EXE-912757... Private 360 Total Security 10.6.0.1223 14274 C:\Windows\inf\
TRUSTEDINSTALLER.EXE-0... Private 360 Total Security 10.6.0.1223 4951 C:\Windows\System32\winevt\Logs\
RUNTIMEBROKER.EXE-A02F... Private 360 Total Security 10.6.0.1223 17942 C:\Users\Tester\AppData\Local\
BCDEDIT.EXE-23D6A12E.pf Private 360 Total Security 10.6.0.1223 1989 C:\Windows\Globalization\ELS\HyphenationDiction...
WINDOWS.WARP.JITSERVIC... Private 360 Total Security 10.6.0.1223 3833 C:\Users\Tester\AppData\Local\

Other Files Related to QHACTIVEDEFENSE.EXE-A1B8174D.pf

File Name Description Software Program (Version) File Size (bytes) File Location
setupapi.dev.log Log 360 Total Security 10.6.0.1223 684126 C:\Windows\inf\
diagerr.xml Extensible Markup Language 360 Total Security 10.6.0.1223 44109 C:\Windows\Panther\UnattendGC\
api-ms-win-core-dateti... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.17134.12) 11112 C:\Users\Tester\AppData\Local\Microsoft\OneDriv...
api-ms-win-core-string... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.17134.12) 11112 C:\Users\Tester\AppData\Local\Microsoft\OneDriv...
OBJECTS.DATA Analysis Studio Offline Data 360 Total Security 10.6.0.1223 23994368 C:\Windows\System32\wbem\Repository\


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