What is onenote.exe?

The genuine onenote.exe file is a software component of Microsoft Office OneNote by Microsoft.
OneNote is part of the Microsoft Office System released in 2003. It allows a user to capture and organise notes on the desktop. The notes are saved automatically as they're made, similar to a paper notebook. The program includes a search function to locate anything, from a particular page in a presentation to a specific phrase or reference. A free version of OneNote is available for anyone to download. Users who purchase Office 365 Home or Office 365 Personal have access to the premium version of OneNote.

OneNote stands for Microsoft Office OneNote

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 onenote.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.

Click to Run a Free Scan for onenote.exe related errors

Onenote.exe file information

The process known as Microsoft Office OneNote belongs to software Microsoft Office OneNote or Microsoft Office Enterprise by Microsoft (

Description: Onenote.exe is not essential for the Windows OS and causes relatively few problems. The file onenote.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 1,018,664 bytes (50% of all occurrences) or 710,344 bytes. 
The program is not visible. The file is digitally signed. It is not a Windows system file. Onenote.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 28% dangerous; however you should also read the user reviews.

Uninstalling this variant: If there are any problems with onenote.exe, you can also uninstall the program using the Control Panel ⇒ Uninstall a ProgramMicrosoft Office Enterprise.

Recommended: Identify onenote.exe related errors

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

I love using this software because it lets me take notes for my school lessons.
  Devin the Doge   (further information)

Summary: Average user rating of onenote.exe: based on 1 vote with 1 user comment. One user thinks onenote.exe is essential for Windows or an installed application.

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Best practices for resolving onenote issues

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

onenote.exe [all]