Fix AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf Errors and Download Now

Last Updated: 01/30/2024
[Time to Read: ~3-5 minutes]

AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf is considered a type of Private file. It is most-commonly used in Avira Free Antivirus 15.0.1909.1591 developed by Avira Operations GmbH & Co. KG.. It uses the PF file extension and is considered a Archive (Private) file.

The initial introduction of AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf released in Avira Free Antivirus 15.0.1909.1591 was for Windows 10 on 09/25/2019. According to our records, this is the primary and most recent file release from Avira Operations GmbH & Co. KG..

This article discusses complete file details, PF file troubleshooting instructions for problems with AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf, and a comprehensive set of free downloads for every file version that has been catalogued by our team.

File Analysis Provided by Jason Geater (Author)


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File Overview


General Information
File Name: AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf
File Extension: PF file extension
File Type: Archive
Description: Private
User Popularity Rating:
 
Developer and Software Information
Software Program: Avira Free Antivirus 15.0.1909.1591
Developer: Avira Operations GmbH & Co. KG.
Software: Avira Free Antivirus
Software Version: 15.0.1909.1591
File Details
File Size (Bytes): 5940
Oldest File Date: 10/02/2019
Latest File Date: 10/02/2019


What are AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf Error Messages?


General AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf Runtime Errors

AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf file errors often occur during the startup phase of Avira Free Antivirus, but can also occur while the program is running. These types PF errors are also known as “runtime errors” because they occur while Avira Free Antivirus is running. Here are some of the most common AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf runtime errors:

Microsoft Visual C++ Runtime Library

Runtime Error!

Program: C:\Windows\Prefetch\AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.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 AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Avira Free Antivirus), or deleted by a malware infection. Furthermore, AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf file corruption could be caused from a power outage when loading Avira Free Antivirus, system crash while loading or saving AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.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 AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.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 AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.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 AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf error, please proceed to the Step 2 below.

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

You can uninstall Avira Free Antivirus 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 Avira Free Antivirus 15.0.1909.1591 and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Avira Free Antivirus software.

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

Avira Free Antivirus 15.0.1909.1591

Avira Operations GmbH & Co. KG.

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 AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.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 AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.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 AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.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 AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf file version. We maintain a comprehensive database of 100% malware-free AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf files for every applicable version of Avira Free Antivirus. 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 AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate Avira Free Antivirus 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 AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.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 AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf Files (Malware-Tested 100% Clean)


CAUTION : We strongly advise against downloading and copying AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf to your appropriate Windows system directory. Avira Operations GmbH & Co. KG. typically does not release Avira Free Antivirus 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 AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf and all other PF files for Avira Free Antivirus. 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 AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf


PF Files Related to AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf

File Name Description Software Program (Version) File Size (bytes) File Location
OPERA_AUTOUPDATE.EXE-6... Private Avira Free Antivirus 15.0.1909.1591 8157 C:\Program Files\Microsoft Office 15\root\vfs\P...
AVIRA_GAME_BOOSTER.EXE... Private Avira Free Antivirus 15.0.1909.1591 5983 C:\Program Files (x86)\Microsoft Office\root\vf...
SMSS.EXE-1DCD0EB1.pf Private Avira Free Antivirus 15.0.1909.1591 2917 C:\Windows\System32\winevt\Logs\
SC.EXE-4502142D.pf Private Avira Free Antivirus 15.0.1909.1591 2426 C:\Program Files\PerformanceTest\
AM_ENGINE.EXE-E190975A.pf Private Avira Free Antivirus 15.0.1909.1591 3751 C:\Users\Tester\AppData\Local\

Other Files Related to AVIRA_OPTIMIZER_HOST.EXE-25FFCD42.pf

File Name Description Software Program (Version) File Size (bytes) File Location
Sessions.xml Extensible Markup Language Avira Free Antivirus 15.0.1909.1591 5277233 C:\Windows\servicing\Sessions\
Sessions.back.xml Extensible Markup Language Avira Free Antivirus 15.0.1909.1591 5277233 C:\Windows\servicing\Sessions\
setuperr.log Log Avira Free Antivirus 15.0.1909.1591 555 C:\$WINDOWS.~BT\Sources\Panther\
api-ms-win-core-profil... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.17134.12) 17528 C:\Users\Tester\AppData\Local\Microsoft\OneDriv...
diagwrn.xml Extensible Markup Language Avira Free Antivirus 15.0.1909.1591 3813 C:\Windows\System32\Sysprep\Panther\


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