What is gtndis5?

Gtndis5.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 gtndis5.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for gtndis5 drivers in need of updating

Gtndis5.sys file information

The process known as PCAUSA NDIS (version 5.0 Protocol Driver) belongs to software GTNDIS5 NDIS Protocol Driver by Printing Communications Assoc., Inc. (PCAUSA) (

Description: Gtndis5.sys is not essential for Windows and will often cause problems. The file gtndis5.sys is located in the C:\Windows\System32 folder or sometimes in a subfolder of "C:\Program Files". The file size on Windows 10/8/7/XP is 15,872 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program is not visible. The service has no detailed description. The file is not a Windows system file. gtndis5.sys appears to be a compressed file. Therefore the technical security rating is 35% dangerous, however you should also read the user reviews.

Recommended: Identify gtndis5.sys related errors

Important: Some malware camouflages itself as gtndis5.sys. Therefore, you should check the gtndis5.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

According to HP technical support this file is spyware. AdAware removes it. I tried it, and my system runs faster again.
Is part of a Win32 NDIS Framework - used by some 802.11 wireless vendors
  Norm   (further information)
windows defender found and allowed it on multiple occasions
  James Troutman  
causes bit defender (V9 standard) to keep acting for permission
My Adware does not remove it.
I tried blocking it and lost my internet for a few hours.
windows defenter detected a problem with it & at same time I'm having problems with WSUSB..... for Linksys Wireless Router. As the Router problem worsened so the other (GTNDIS5.SYS) appears! Figure they're linked.
Part of 3rd party application conection for wireless, when not using windows wireless zero configuration
According to my Zamana Anti-Logger program, this file will take control of computer and I have searched it out and found that it is not a windows system file.
  Tommy Primm  
Avast classifies it as a possible threat too.
  Poulin La-Terreur  

Rating chart

Summary: Average user rating of gtndis5.sys: based on 7 votes with 10 user comments. 2 users think gtndis5.sys is essential for Windows or an installed application. One user thinks it's probably harmless. One user thinks it's neither essential nor dangerous. 2 users suspect danger. One user thinks gtndis5.sys is dangerous and recommends removing it. 3 users don't grade gtndis5.sys ("not sure about it").

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Best practices for resolving gtndis5 issues

A clean and tidy computer is the key requirement for avoiding problems with gtndis5. 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 gtndis5.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

gtndis5.sys [all]