What is imjpmig.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 imjpmig.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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Imjpmig.exe file information

Windows Task Manager with imjpmig
Imjpmig.exe process in Windows Task Manager

The process known as Microsoft IME (version 2003 Component) belongs to software Microsoft IME (version 2002) or VisualStudio2005 RuntimeLibrary by Microsoft (

Description: Imjpmig.exe is not essential for the Windows OS and causes relatively few problems. The file imjpmig.exe is located in a subfolder of C:\Windows. Known file sizes on Windows 10/8/7/XP are 208,952 bytes (95% of all occurrences) or 229,432 bytes. 
The program has a visible window. The process is loaded during the Windows boot process (see Registry key: MACHINE\Run). It is a trustworthy file from Microsoft. Imjpmig.exe is not a Windows system file. Therefore the technical security rating is 1% dangerous; however you should also read the user reviews.

Recommended: Identify imjpmig.exe related errors

If imjpmig.exe is located in a subfolder of "C:\Program Files\Common Files", the security rating is 16% dangerous. The file size is 125,792 bytes. The program has a visible window. The file is digitally signed. The process starts when Windows starts (see Registry key: MACHINE\Run). Imjpmig.exe is not a Windows core file.

Uninstalling this variant: If there are any problems with imjpmig.exe, you may also uninstall VisualStudio2005 RuntimeLibrary from your computer using the Control Panel applet Uninstall a Program.

External information from Paul Collins:

Important: Some malware camouflages itself as imjpmig.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the imjpmig.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

Japanese input method editor, used for typing japanese characters using standard qwerty keyboard, safe
Input method for Japanese
running as process using 100% CPU at startup
Cause my CPU to run at 100%
  Thomas Ronald Melrose  
Cause my CPU to run at 100%
  Ivo Nikolov  
It's located at C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE and autostarts with the followind parameters :
I use Japanese platform. Imjpmig.exe loads upon Windows startup, though msconfig scna shows it doesn't run, i.e. might be disabled from startup.
Can be turned off in MSCONFIG-- STARTUP
  Joshua Senft  
Cause my CPU to run at 98%, a minute after deleting it reappears all by itself.
  nadya ilionova  
Part of Microsoft's Input Message Editor (IME) for translating Japanese/Chinese text in IE, Outlook and Word
  hal   (further information)
Information under "description" is accurate, including file size and location.
I believe it is used for input of non-western characters. However the "all-caps" make it not absolutely trustworthy. Should be in Windows folder but never /system32
Many people have it i think it is safe
Runs on start up and uses up 50% of the cpu consistently and just ending the process doesn't cause any problems and the cpu suddenly drops to 2-3%.
Causes my friends CPU to run at 50%, comes on at startup. When process is ended, it doesn't come back until restart and CPU drops to 3%.

Rating chart

Summary: Average user rating of imjpmig.exe: based on 17 votes with 15 user comments. 7 users think imjpmig.exe is essential for Windows or an installed application. 3 users think it's probably harmless. 5 users think it's neither essential nor dangerous. 2 users suspect danger. 5 users don't grade imjpmig.exe ("not sure about it").

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Best practices for resolving imjpmig issues

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

imjpmig.exe [all]