What is nexdef.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the nexdef.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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Nexdef.exe file information

Windows Task Manager with nexdef
Nexdef.exe process in Windows Task Manager

The process known as nexdef.exe belongs to software NexDef Plug-in by unknown.

Description: Nexdef.exe is not essential for the Windows OS and causes relatively few problems. The nexdef.exe file is located in a subfolder of the user's profile folder or sometimes in a subfolder of "C:\Program Files". The file size on Windows 10/8/7/XP is 13,179,660 bytes. 
The file is a file with no information about its developer. The program starts upon Windows startup (see Registry key: User Shell Folders). It is not a Windows system file. The program has no visible window. Nexdef.exe is able to monitor applications. Therefore the technical security rating is 69% dangerous, however you should also read the user reviews.

Uninstalling this variant: If problems with nexdef.exe occur, you can also uninstall NexDef Plug-in software via Windows Control Panel/Add or Remove Programs (Windows XP) or Programs and Features (Windows 10/8/7).

Recommended: Identify nexdef.exe related errors

Important: Some malware camouflages itself as nexdef.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the nexdef.exe 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 GBTV
It is used by Major League Baseball and Glenn Beck TV (GBTV). This is what their high definition player uses. It's located in C:\DOcuments and Settings\*user*\Local Settings\Application Data\Autobahn\nexdef.exe
  bh2win   (further information)
Nexdef is the plugin/program used by MLBTV, and GBTV to view high definition video.
  Jason Haymond   (further information)
After I installed MLBTV high def program nexdef showed up. It was required to level out buffering to have a smooth viewing experience.
MLB Hi Def video streaming for TheBlaze (GBTV)
  Chris_R   (further information)
used by MLB and GBTV. Installed personally with knowledge of its source.
    (further information)
it's a plugin
GBVT and MLB Player program

Rating chart

Summary: Average user rating of nexdef.exe: based on 7 votes with 8 user comments. 4 users think nexdef.exe is essential for Windows or an installed application. One user thinks it's probably harmless. 2 users think it's neither essential nor dangerous. One user is not sure about it.

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Best practices for resolving nexdef issues

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

nexdef.exe [all]