What is BrYNSvc.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 BrYNSvc.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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BrYNSvc.exe file information

Windows Task Manager with BrYNSvc
BrYNSvc.exe process in Windows Task Manager

The process known as BrYNCSvc or BrYNSvc belongs to software BrYNCSvc or C3400 Series GDI Driver from OKI by Brother Industries (

Description: BrYNSvc.exe is not essential for the Windows OS and causes relatively few problems. The file BrYNSvc.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 245,760 bytes (47% of all occurrences), 266,240 bytes, 282,112 bytes, 270,336 bytes or 249,856 bytes. 
The program is not visible. BrYNSvc.exe is not a Windows system file. Therefore the technical security rating is 40% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you still experience problems with BrYNSvc.exe, you may also completely remove C3400 Series GDI Driver from OKI® (Control Panel ⇒ Uninstall a Program).

Recommended: Identify BrYNSvc.exe related errors

Important: Some malware camouflages itself as BrYNSvc.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the BrYNSvc.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 software for Brother printers
  meetoo   (further information)
It is used with Brother printer support.
BrYNSvc.exe is for the Brother Status Monitor of networked brother printers. In my case a WiFi printer. When I use my firewall to block this file I can’t see the status (online/offline and ink levels) of my WiFi printer. When the file is unblocked by my firewall the printer status shows as ready and not offline. I can also see the ink levels of the WiFi printer.
brother printing/fax software
Appears to belong to a Brother printer
Brother printing monitor. Really boring that the first reaction is to call it something horrible. Better would be to say it may be a printer monitor - i.e., first look for it's purpose rather than a scare.
I also have a Brother Printer Connected only via WiFi My Printer Model is: MFC-J4410DW
Dangerous. It comes up in totally unrelated Internet stuff.
it checks for brother software updates. If I were to rootkit someone, I'd inject it there :P
Neccessary for Brother networking printer status and ink level information
essential for networked Brother printer
Brother Software

Rating chart

Summary: Average user rating of BrYNSvc.exe: based on 14 votes with 13 user comments. 9 users think BrYNSvc.exe is essential for Windows or an installed application. 2 users think it's probably harmless. One user thinks it's neither essential nor dangerous. 2 users suspect danger. 3 users don't grade BrYNSvc.exe ("not sure about it").

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Best practices for resolving BrYNSvc issues

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

BrYNSvc.exe [all]