What is symids?

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

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

Symids.sys file information

The process known as IDS Filter Driver belongs to software Symantec Security Drivers or Symantec Network Filter Driver by Symantec (

Description: Symids.sys is not essential for the Windows OS and causes relatively few problems. The file symids.sys is located in a subfolder of C:\Windows\System32\drivers (common is C:\WINDOWS\System32\Drivers\). Known file sizes on Windows 10/8/7/XP are 33,072 bytes (71% of all occurrences), 34,736 bytes or 34,608 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program has no visible window. The file is a Verisign signed file. It is certified by a trustworthy company. The service has no detailed description. Symids.sys is not a Windows core file. symids.sys appears to be a compressed file. Therefore the technical security rating is 20% dangerous; however you should also read the user reviews.

Recommended: Identify symids.sys related errors

If symids.sys is located in the C:\Windows\System32\drivers folder, the security rating is 5% dangerous. The file size is 40,120 bytes (50% of all occurrences), 38,576 bytes or 31,624 bytes. The program is not visible. Symids.sys is a Verisign signed file. The file has a digital signature. The service has no detailed description. The symids.sys file is not a Windows system file. The application can be uninstalled in the Control Panel. symids.sys appears to be a compressed file.

Uninstalling this variant: If you have any problems with symids.sys, you can also safely remove the program using the uninstall program of SymNet (Control Panel ⇒ Uninstall a Program).

Important: Some malware camouflages itself as symids.sys. Therefore, you should check the symids.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)
After my last weekly update to symantec, I had to reboot the system. After that I tried to get on the internet. After connecting it gets this error every time.
  Michael Paxton  

Summary: Average user rating of symids.sys: based on 1 vote with 2 user comments. One user thinks symids.sys is essential for Windows or an installed application. One user is not sure about it.

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Best practices for resolving symids issues

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

symids.sys [all]