What is Msosync.exe and How to Fix It?

Last Updated : 21 Mar, 2024

Msosync.exe is a Microsoft Office process that synchronizes Office files between a local machine and the Office 365 cloud. It is a background process designed to manage the cache for quicker access to Office files.

However, users may encounter errors that disrupt its operation. This process is associated with Microsoft Office Document Cache and is designed to manage the cache for quicker access to Office files. In this article, We'll show how to fix MSOSYNC.EXE Error Messages.

Table of Content

What is MSOSYNC.EXE?

Msosync.exe is a Microsoft Office process that manages the cache associated with Office apps, ensuring quick access to Excel, Word, PowerPoint, SharePoint, and OneDrive documents. Msosync.exe synchronizes Office documents between local machines and the Office 365 cloud, ensuring efficient file management. However, it can encounter errors that disrupt its functionality.

1. Restore Your PC To The Latest Restore Point

System Restore is a function present in Microsoft Windows that empowers users to roll back their computer's condition (including of system files, installed software, Windows Registry, and system configurations) to a prior date. This can be used to recover from system malfunctions or other problems.

Step 1: Start your PC, then press and hold the power button for 10 seconds to turn it off.

Step 2: Turn off the power two more times.

Step 3: Wait for your computer to boot into the Windows Recovery Environment.

Step 4: From the "Choose an option" screen, select Troubleshoot > Advanced options

Step 5: Then, click on System Restore after that follow the prompt

Restore-your-PC-to-the-latest-restore-point

Step 6: Restart your PC to see if the issue has been resolved.

Also Check: How to create a System Restore point in Windows 10?

2. Rename the MSOSYNC.EXE File

Sometime, renaming the executable file might prove beneficial in addressing the issue. This can be particularly useful when the file gets damaged or is not functioning as expected.

Step 1: Press Windows Key + E to open file explorer

Step 2: Navigate to this path in file explorer

C:\Program Files\Microsoft Office

Step 3: Then, Click on "office16" or "office15"

Rename-the-msosync

Step 4: Rename "msosync.exe" to "msosync_old.exe" for easy identification and reversal if necessary.

Rename-the-msosync-1

3. Kill the Task in Task Scheduler

The Task Scheduler is a feature of Microsoft Windows. Its role is scheduling the launch of programs or scripts at specific times or following particular time gaps. If a task is causing issues, it can be ended directly from the Task Scheduler.

Step 1: Press Windows Key + R then on run dialog type "taskschd.msc" to open task schedular

Step 2: Right click on "Microsoft Office 15 Sync Maintenance" then select "Disable"

Kill-the-task-in-Task-Scheduler

Step 3: Restart your computer

Also Check: How to Abort a Command Execution in Command Prompt?

4. Repair Microsoft Office

Microsoft Office carries an inbuilt repair mechanism designed to tackle frequent issues often faced by users. You can access this tool via the Control Panel to resolve any Office suite-related issues with msosync.exe.

Step 1: Press Windows Key + R then on run dialog type "Control" hit enter

Step 2: In Control panel window, CLick on the "Uninstall Programs"

Repair-Microsoft-Office

Step 3: From the list of application right click on "Microsoft 365" then select "Change"

Step 4: Click Yes button on UAC window

Step 5: In the window that opens, select ‘Repair’ after selecting "Online Repair"

Repair-Microsoft-Office-1

5. Uninstall OneDrive

OneDrive operates as a file storage and synching service operated by Microsoft, part of their web-based Office suite. If msosync.exe begins encountering problems due to OneDrive, uninstalling and then reinstalling the application may resolve the problem.

Step 1: Press Windows Key + R then on run dialog type "Control" hit enter

Step 2: In Control panel window, CLick on the "Uninstall Programs"

Step 3: From the list of application right click on "Microsoft OneDrive" then select "Uninstall"

Step 4: Click Yes button on UAC window

Uninstall-OneDrive

6. Run System File Checker (SFC)

Running SFC can repair corrupted system files, potentially resolving msosync.exe errors:

Step 1: Press Win + S then on the search bar type “CMD” and click on “Run as administrator“

Step 2: In the Command prompt type the following command and hit enter:

sfc /scannow

Conclusion

In Conclusion, While msosync.exe errors may seem daunting, you can manage them with a systematic approach and the right tools. We shown you some solutions to common msosync.exe issues.

By understanding msosync.exe’s role in the Microsoft Office suite and its interaction with your system, you can apply these methods effectively. Don’t forget, regular system updates and backups are your best defense against future problems.