What is onenotem.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 onenotem.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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Onenotem.exe file information

Windows Task Manager with onenotem
Onenotem.exe process in Windows Task Manager

The process known as Microsoft Office OneNote Quick Launcher or Microsoft OneNote Quick Launcher or Send to OneNote Tool

belongs to software Microsoft Office Shared (version 64-bit Setup, 64-bit MUI 2007, 64-bit, 64-bit MUI 2010) or Microsoft Office Home and Student (version 2007, 2013) or Microsoft Office Access Setup Metadata MUI or Microsoft Office Home and or Microsoft Office (version 365 - en-us, 365 ProPlus - en-us, 365 Home Premium - en-us, 365 Small Business Premium, 365 Home Premium Preview, 2003 Primary) or Microsoft Office OneNote (version 2003, 2007) or Microsoft Office Enterprise (version 2007) or Microsoft Office Access Setup or Microsoft Office Single Image (version 2010) or Microsoft Office Professional Plus (version 2013, 2010) or Microsoft Office Home and Business (version 2013) or Microsoft Office Groove MUI (version 2007) or Microsoft Office Office (version 64-bit Components) or Microsoft Office Shared Setup Metadata MUI or Microsoft Office Professional (version 2013)

by Microsoft (

Description: Onenotem.exe is not essential for the Windows OS and causes relatively few problems. Onenotem.exe is located in a subfolder of "C:\Program Files"—mostly C:\Program Files\Microsoft Office\OFFICE11\. Known file sizes on Windows 10/8/7/XP are 97,680 bytes (34% of all occurrences), 228,552 bytes and 31 more variants. 
The file is not a Windows system file. The onenotem.exe file is digitally signed. The software starts upon Windows startup (see Registry key: User Shell Folders, MACHINE\User Shell Folders, DEFAULT\User Shell Folders, Shell Folders). The program has no visible window. Therefore the technical security rating is 33% dangerous, however you should also read the user reviews.

Uninstalling this variant: The software vendor offers the option to get help from the software vendor Microsoft or uninstall the program using the Control Panel ⇒ Uninstall a ProgramMicrosoft Office Shared 64-bit Setup or Microsoft Office Home and.

Recommended: Identify onenotem.exe related errors

External information from Paul Collins:

Important: Some malware camouflages itself as onenotem.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the onenotem.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 Microsoft Office
  Ben!   (further information)
MS OneNote 2003 startup file for systray icon.
  Ryan SM  
Belongs to the Microsoft program One Note.
  Jørgen Michalow  
It is used for One Note a programm on the office suite 2007 and perhaps also of other versions of the office suite
runs in background, allowing OneNote to open when you press WINDOWS-SHIFT-N.

Rating chart

Summary: Average user rating of onenotem.exe: based on 8 votes with 5 user comments. 6 users think onenotem.exe is essential for Windows or an installed application. 2 users think it's neither essential nor dangerous.

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Best practices for resolving onenotem issues

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

onenotem.exe [all]