What is Ip6Fw?

Ip6Fw.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 Ip6Fw.sys is a Windows system file or if it belongs to an application that you can trust.

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Ip6Fw.sys file information

The process known as IPv6 Windows Firewall Driver or IPv6 Internet Connection Firewall belongs to software Microsoft Windows Operating System or IPv6 Windows Firewall Driver by Microsoft (

Description: Ip6Fw.sys is an important part of Windows, but often causes problems. Ip6Fw.sys is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 29,056 bytes (88% of all occurrences), 36,608 bytes or 29,952 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. It is a Windows system file. The program has no visible window. The file is a Microsoft signed file. The process is not active. Ip6Fw.sys appears to be a compressed file. Therefore the technical security rating is 0% dangerous, however you should also read the user reviews.

Recommended: Identify Ip6Fw.sys related errors

Important: Some malware also uses the file name Ip6Fw.sys, for example Trojan-Downloader.Win32.Agent.acl (detected by Kaspersky), and RTKT_PUSHU.AC (detected by TrendMicro). Therefore, you should check the Ip6Fw.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

added by a rootkit
  LB   (further information)
IPv6-Windows-Firewalltreiber deinstalliert
  Marko Schmidt  

Rating chart

Summary: Average user rating of Ip6Fw.sys: based on 6 votes with 2 user comments. One user thinks it's neither essential nor dangerous. 5 users think Ip6Fw.sys is dangerous and recommend removing it.

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Best practices for resolving Ip6Fw issues

A clean and tidy computer is the key requirement for avoiding problems with Ip6Fw. 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 Ip6Fw.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

Ip6Fw.sys [all]