What is WDBtnMgr.exe?

The genuine WDBtnMgr.exe file is a software component of WD Button Manager by Western Digital Technologies.
The file named "WDBtnMgr.exe" is an executable that runs in the background of Windows and is part of Western Digital's Backup Manager. The file responds to a predefined button press that is programmed by the user and when depressed, it activates the backup software function that automatically backs up the Windows system to the preprogrammed location. Western Digital is a global, digital technologies company that primarily focuses on storage hardware and software for consumers, corporations, and organizations.

WDBtnMgr stands for Western Digital Button Manager

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 WDBtnMgr.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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WDBtnMgr.exe file information

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

The process known as WD Button Manager belongs to software WD Button Manager by Western Digital Technologies (

Description: WDBtnMgr.exe is not essential for the Windows OS and causes relatively few problems. WDBtnMgr.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 364,544 bytes (46% of all occurrences), 339,968 bytes and 4 more variants. 
The file is not a Windows system file. The WDBtnMgr.exe file is located in the Windows folder, but it is not a Windows core file. The software starts upon Windows startup (see Registry key: MACHINE\Run). The program has no visible window. WDBtnMgr.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 58% dangerous, however you should also read the user reviews.

Recommended: Identify WDBtnMgr.exe related errors

If WDBtnMgr.exe is located in a subfolder of C:\Windows, the security rating is 52% dangerous. The file size is 364,544 bytes (57% of all occurrences), 143,360 bytes, 360,448 bytes or 339,968 bytes. The program has no visible window. The file is located in the Windows folder, but it is not a Windows core file. It is not a Windows system file. WDBtnMgr.exe is able to record keyboard and mouse inputs.

External information from Paul Collins:

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

Western Digital external disk - tray program - button manager
Western Digital external HD button manager for backup
  Stephen Marcus  
Western Digital External USB Hard Drive button mangager
External Western Digital HardDrive
This program support the Western Digital external hard drives.
Western Digital external disk - tray program - button manager
installs with external wd hdd also
  david vallence  
Western Digital External Harddrive
Western Digital "button manager"/tray program for WD MyBook external hard drives. Necessary for correct shutdown of MyBook ES (eSATA) drives.
Western Digital for external USB Firewire Drive. WD externals crash alot
  Dr Zen  
I think when my XP starts up, WDBtnMgr.exe takes up 50% or so CPU useage or more at times until I end process it from the Task Manager (alt-ctr-del)

Rating chart

Summary: Average user rating of WDBtnMgr.exe: based on 13 votes with 11 user comments. 11 users think WDBtnMgr.exe is essential for Windows or an installed application. 2 users think it's neither essential nor dangerous. 2 users don't grade WDBtnMgr.exe ("not sure about it").

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Best practices for resolving WDBtnMgr issues

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

WDBtnMgr.exe [all]