What is symredrv?

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

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

Symredrv.sys file information

The process known as Redirector Filter Driver or Redirector Filter belongs to software Symantec Security Drivers or Symantec Endpoint Protection by Symantec (

Description: Symredrv.sys is not essential for Windows and will often cause problems. Symredrv.sys is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 27,576 bytes (33% of all occurrences), 22,320 bytes and 4 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. The symredrv.sys file is a Verisign signed file. The file has a digital signature. There is no detailed description of this service. It is not a Windows core file. The software can be uninstalled in the Control Panel. symredrv.sys appears to be a compressed file. Therefore the technical security rating is 8% dangerous, however you should also read the user reviews.

Uninstalling this variant: There is a possibility to completely remove SymNet or Symantec AntiVirus (Control Panel ⇒ Uninstall a Program).

Recommended: Identify symredrv.sys related errors

Important: Some malware disguises itself as symredrv.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the symredrv.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

Part of Symantec Norton Internet Security suite
  Georg   (further information)

Summary: Average user rating of symredrv.sys: based on 2 votes with 2 user comments. One user thinks symredrv.sys is essential for Windows or an installed application. One user thinks symredrv.sys is dangerous and recommends removing it.

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Best practices for resolving symredrv issues

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

symredrv.sys [all]