What is avgntflt?

Avgntflt.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if avgntflt.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for avgntflt drivers in need of updating

Avgntflt.sys file information

The process known as AVIRA Minifilter Driver or Avira Minifilter Driver or H+BEDV Datentechnik GmbH Minifilter Driver

belongs to software Avira AntiVir PersonalEdition or Avira Product Family or AntiVir Workstation

by Avira GmbH ( or Avira Operations GmbH & Co. KG or AVIRA GmbH ( or H+BEDV Datentechnik GmbH (

Description: Avgntflt.sys is not essential for the Windows OS and causes relatively few problems. Avgntflt.sys is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 48,448 bytes (27% of all occurrences), 45,104 bytes and 5 more variants. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program has no visible window. It is not a Windows system file. The avgntflt.sys file is a Verisign signed file. The file has a digital signature. The program has no file description. Therefore the technical security rating is 14% dangerous, however you should also read the user reviews.

Uninstalling this variant: It is possible to uninstall Avira AntiVir PersonalEdition or Avira AntiVir Personal - Free software via Windows Control Panel/Add or Remove Programs (Windows XP) or Programs and Features (Windows 10/8/7).

Recommended: Identify avgntflt.sys related errors

If avgntflt.sys is located in the C:\Windows\System32\drivers folder, the security rating is 11% dangerous. The file size is 55,640 bytes (18% of all occurrences), 84,744 bytes and 9 more variants. The program has no visible window. The avgntflt.sys file is a Verisign signed file. The file has a digital signature. It is not a Windows core file. avgntflt.sys appears to be a compressed file.

Important: Some malware camouflages itself as avgntflt.sys. Therefore, you should check the avgntflt.sys process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

es una archivo del antivirus avira en C windows-system32-drivers, en mi caso vi en visor de eventos de windows que estaba dañado, por eso pase el antivirus y reinstale avira, lo baje de nuevo de su web Pudo haberse dañado por un virus, un limpiador de registro o que se yo.
  Edgar Dulanto  
avgntflt is the driver used by Avira Antivir's resident virus scanner called Guard to scan on-access files
File version is filesize 56,816 bytes
  Dave /B00kwyrm  
Avira Premium Security, should be in c:\windows\system32\drivers\avgntflt.sys
gehört zu Avira dem Vierenprogramm!

Rating chart

Summary: Average user rating of avgntflt.sys: based on 7 votes with 6 user comments. 4 users think avgntflt.sys is essential for Windows or an installed application. 3 users think it's probably harmless.

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Best practices for resolving avgntflt issues

A clean and tidy computer is the key requirement for avoiding problems with avgntflt. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the avgntflt.sys process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

avgntflt.sys [all]