Repair and Download ONBttnOL.dll Now

Sometimes Windows system displays error messages regarding corrupted or missing ONBttnOL.dll files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent ONBttnOL.dll file can therefore effect in failed execution of the started process.

ONBttnOL.dll file Microsoft OneNote Outlook Add-in. The file was developed by for use with software. Here you will find detailed information about the file and instructions how to proceed in the event of ONBttnOL.dll related errors on your device. You can also download ONBttnOL.dll file compatible with Windows 10, Windows 7, Windows Vista devices which will (most probably) allow you to solve the problem.

Compatible with: Windows 10, Windows 7, Windows Vista

User popularity

Fix ONBttnOL.dll errors

1 Information about ONBttnOL.dll file
2 Errors related to ONBttnOL.dll file
3 How to fix ONBttnOL.dll related errors?

3.1 Scanning for malicious software
3.2 System and driver update
3.3 System File Checker tool
3.4 System recovery

4 Download ONBttnOL.dll

4.1 List of ONBttnOL.dll file versions

File info

General information
Filename	ONBttnOL.dll
File extension	DLL
Description	Microsoft OneNote Outlook Add-in

Software
Program	Microsoft OneNote
Author	Microsoft Corporation

Details
MIME type	application/octet-stream
File type	Dynamic link library
System	Windows NT 32-bit
Copyrights	© 2010 Microsoft Corporation. All rights reserved.
Character set	Windows, Latin1
Language cod	Neutral

Most common ONBttnOL.dll file related problems

There are various types of errors related to ONBttnOL.dll file. ONBttnOL.dll file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to ONBttnOL.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

ONBttnOL.dll is corrupted
ONBttnOL.dll cannot be located
Runtime Error - ONBttnOL.dll
ONBttnOL.dll file error
ONBttnOL.dll file cannot be loaded. Module was not found
cannot register ONBttnOL.dll file:
ONBttnOL.dll file could not be loaded
ONBttnOL.dll file doesn't exist

ONBttnOL.dll

Application could not be started because ONBttnOL.dll file is missing. Reinstall the application to solve the problem.

Problems related to ONBttnOL.dll can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing ONBttnOL.dll file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

How to fix ONBttnOL.dll errors in just few steps?

Remember, before taking any action related to system files perform a backup copy of your data!

ONBttnOL.dll file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with ONBttnOL.dll file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Installing relevant Microsoft Windows patches and updates may solve your problems related to ONBttnOL.dll file. Use dedicated Windows tool to perform the update.

Go to the Windows "Start" menu
Type "Windows Update" in the search field
Choose the appropriate software program (name may vary depending on your system version)
Check if your system is up to date. If any unapplied updates are listed, install them immediately.
After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of ONBttnOL.dll or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to ONBttnOL.dll file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the ONBttnOL.dll file with properly working version. To use the tool:

Go to the Windows "Start" menu
Type "cmd" in the search field
Locate "Command Prompt" result – don't run it yet:
Click the right mouse button and select "Run as Administrator" option
Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Another approach is to restore system to previous state, before the ONBttnOL.dll file error occured. In order to restore your system, follow the instructions below

Go to the Windows "Start" menu
Type "System Restore" in the search field
Start the system restore tool – it's name may differ depending on version of the system
The application will guide you through the process – read the messages carefully
After the process has finished, restart your computer.

If all the above-mentioned methods failed and the ONBttnOL.dll file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace ONBttnOL.dll file

The last solution is to manually download and replace ONBttnOL.dll file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded ONBttnOL.dll file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of ONBttnOL.dll file example directory paths.

Windows 10: C:\Program Files\Microsoft Office\Office15\
Windows 7: C:\Program Files (x86)\Microsoft Office\Office14\
Windows Vista: C:\Program Files (x86)\Microsoft Office\Office12\

If the steps did not solve your ONBttnOL.dll file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

Filename ONBttnOL.dll

System Windows 10

File size 754368 bytes

Date 2017-05-10

Download

File details
	MD5	2180ad6e1badcc95d49fb6c0efb9e649
	SHA1	794620023b2c7ecd5b4767f64f25049afed7e878
	SHA256	6d85c2b800d0b18ac8cef9421ea11413667bb3e4894f51db36d05adedcb4b578
	CRC32	94b5947a
	Example file location	C:\Program Files\Microsoft Office\Office15\

Filename ONBttnOL.dll

System Windows 7

File size 697728 bytes

Date 2017-05-10

Download

File details
	MD5	c8adda02e3492043f53f2c11c23bdf7b
	SHA1	7a5de191a5c1dd79ea360311a6905c67d4534cb4
	SHA256	0fa57f193126c1e565c7d2a55f951dd25971747f95f95b86705cd63c3e1a9021
	CRC32	46b49844
	Example file location	C:\Program Files (x86)\Microsoft Office\Office14\

Filename ONBttnOL.dll

System Windows Vista

File size 687432 bytes

Date 2017-05-10

Download

File details
	MD5	b9b41645e7489fe3ca5c9236fba70d4f
	SHA1	7877de8707b03d5d75cb39ecc87793c5d0af0d02
	SHA256	48ebf29d9135bc130205d215eaf8c5cee3c84ebb7f6d3c7066d5c3781d942435
	CRC32	e128116b
	Example file location	C:\Program Files (x86)\Microsoft Office\Office12\