What is Rtnicxp?

The genuine Rtnicxp.sys file is a software component of Realtek Network Interface Cards by Realtek Semiconductor.
Rtnicxp.sys is a Windows XP driver file for the Realtek Network Interface Cards. A driver is a software program that provides communication between the hardware and the software components of a system. Removing this file may cause problems with Realtek software. Realtek is a Taiwanese fabless semiconductor company founded in 1987. Realtek employs over 2,000 people, most of which work in research and development. Realtek manufactures and sells a wide variety of products based on Integrated Circuitry throughout the world. Its products broadly cover communications networks, computer peripherals and multimedia.

RtNICXP stands for Realtek NIC driver for Windows XP

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

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

Rtnicxp.sys file information

The process known as Realtek (version 10/100/1000 NDIS 5.1 Driver, 10/100 NDIS 5.1 Driver) belongs to software Realtek (version 10/100/1000 NIC Family all in one NDIS Driver, 10/100/1000 NIC Family all in one NDIS XP Driver, 10/100 NIC Family all in one NDIS Driver) by Realtek Semiconductor (

Description: Rtnicxp.sys is not essential for the Windows OS and causes relatively few problems. Rtnicxp.sys is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 130,432 bytes (44% of all occurrences), 81,408 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. The file is not a Windows core file. Rtnicxp.sys is a trustworthy file from Microsoft. Rtnicxp.sys appears to be a compressed file. Therefore the technical security rating is 18% dangerous; however you should also read the user reviews.

Recommended: Identify Rtnicxp.sys related errors

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

I did non see it for a year after windows XP installation. I just appeared recently
Rtnicxp.sys is part of Realtek 10/100 NDIS 5.1 Driver developed by Realtek Semiconductor

Rating chart

Summary: Average user rating of Rtnicxp.sys: based on 6 votes with 2 user comments. 4 users think Rtnicxp.sys is essential for Windows or an installed application. 2 users think it's probably harmless. One user is not sure about it.

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Best practices for resolving Rtnicxp issues

A clean and tidy computer is the key requirement for avoiding problems with Rtnicxp. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the Rtnicxp.sys process on your computer, the following programs have proven to be helpful: ASecurity 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. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

Rtnicxp.sys [all]