What is e100b325?

E100b325.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 e100b325.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for e100b325 drivers in need of updating

E100b325.sys file information

The process known as Intel® PRO/100 Adapter NDIS (version 5.1 driver) or NDIS 5 driver belongs to software Intel® PRO Network Connection Driver or Intel® PRO Adapter Driver by Intel (

Description: The original e100b325.sys is an important part of Windows and rarely causes problems. E100b325.sys is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 154,112 bytes (22% of all occurrences), 163,328 bytes and 4 more variants. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program is not visible. There is no detailed description of this service. E100b325.sys is a Microsoft signed file. e100b325.sys appears to be a compressed file. Therefore the technical security rating is 11% dangerous; however you should also read the user reviews.

Recommended: Identify e100b325.sys related errors

Important: Some malware disguises itself as e100b325.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the e100b325.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

install network card
i know it is a pain in the butt. i have a continual startup message asing me to insert some cd and download it. i don't know which disk i'm supposed to get it from. i don't know what it drives. if i did i might be able to get rid of the dan message.
my computer is asking for that file. how do l get it
Intel network card driver
need files
get pro 100 v driver at intel/support
It's an Intel Network card driver pro 100b
dueltv card driver
  Francis Dadson  

Rating chart

Summary: Average user rating of e100b325.sys: based on 18 votes with 8 user comments. 12 users think e100b325.sys is essential for Windows or an installed application. 4 users think it's probably harmless. One user thinks it's neither essential nor dangerous. One user thinks e100b325.sys is dangerous and recommends removing it.

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Best practices for resolving e100b325 issues

A clean and tidy computer is the key requirement for avoiding problems with e100b325. 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 e100b325.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

e100b325.sys [all]