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How to eliminate SymIM driver problems

The SymIM.sys (NDIS Intermediate driver) file is a Windows driver. Generally, drivers are used by Windows to enable internal components like graphic cards and drives, or external devices, such as printers, backup media or input devices.
Click here to check if you need to update your SymIM driver.

The SymIM.sys process is also known as NDIS Intermediate Driver or, as the case may be, SymIMMP and is a part of Symantec Security Drivers or, as the case may be, SymIMMP. This software is produced by Symantec (www.symantec.com). An obsolete or defective version of SymIM.sys can cause problems for your computer that can range from slowness to error messages such as these:

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What you should know about SymIM.sys NDIS Intermediate driver

SymIM.sys is not part of Windows, but it is important nonetheless. The file SymIM.sys is found in the C:\Windows\System32\drivers directory. Frequently occurring are file sizes such as 36,400 bytes (46% of all these files), 31,280 bytes, 44,024 bytes or, as the case may be, 31,408 bytes.
If necessary, you can manually stop or start this driver in the Device Manager. The Device Manager can be found in Windows Control Panel under Hardware and Sound/Devices and Printers/Device Manager. The driver facilitates access to your computer's hardware and accessories. The original file by Microsoft is digitally signed. So please check the file on your computer. The program executes in the background, and can only be terminated using Windows Task Manager. It has a digital signature. This confirms that the producer has been registered with a certificate authority. It is unusual for the service not to provide any indication of how and why it is required. The file does not come from Microsoft and is not part of the operating system. It contains a digital signature from Verisign, a subsidiary of Symantec. Verisign thereby confirms this file's authenticity and integrity. SymIM.sys appears to be a file that was compressed by an EXE-Packer. This technique is often used by trojans to keep the file size small and also hamper debugging efforts. However, this in itself is not sufficient reason to presume malicious intent, since even well-intentioned, professional software producers take advantage of compressed files. For this reason, 0% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.

If you see this file on your hard drive or in Windows Task Manager, please make sure that it is not a malicious variant. It's a fact that many trojans try to cloak their true identity by calling themselves SymIM.sys. With the above information or by using tools like Security Task Manager you can determine if, in your case, the file is an undesirable variant.

What do other computer users say about SymIM?

symim.sys is part of Symantec Security located in C:\WINDOWS\system32\drivers\symim.sys
Willy

Summary: One user judges SymIM.sys to be an essential file that should not be touched. source: file.net

How to uninstall Symantec Security Drivers or SymIMMP

SymIM.sys NDIS Intermediate driver fix

To remove NDIS Intermediate driver from your computer, please follow the manual instructions below or use an automatic uninstaller product.

  1. Click the Windows Start Button. In Windows 8, look for Control Panel.
  2. Click Control Panel.
  3. Click Uninstall a program.
  4. Look for Symantec Security Drivers or SymIMMP in the list of available programs.
  5. Click Uninstall.

How to tell if SymIM.sys (NDIS Intermediate driver) was uninstalled cleanly

After uninstalling, restart your computer. Then start Windows Explorer and see if there is still a folder with the name of the software under C:\Program Files. Be sure to check the Registry as well for remnants of NDIS Intermediate driver. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for NDIS Intermediate driver or the name of the producer. Always keep in mind that only a computer professional should ever directly delete entries in the Windows Registry.

What to do if a program does not uninstall

The easiest way to remove any kind of software cleanly and accurately is to use an uninstaller tool. Because the uninstaller automatically creates a backup, there is no risk of anything going wrong.

Last but not least

If Windows not working quite right for you, or if startup is taking a long time, or SymIM.sys is causing problems for you, a good Windows diagnostic tool may very well help. This is especially effective when it comes to older computers that have accumulated vast quantities of "garbage data" as the result of many software installs and uninstalls.

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