How to Stop Sync Center (Mobsync.exe) from Running in Windows

Here’s a look at what Sync Center or mobsync.exe is and how to stop it from running when you start up your Windows PC.

Have you ever wondered what that little green and yellow icon living on your taskbar is? Or why it’s even running? Here’s a look at what it is, what it does, and how to stop it from running when you start up your Windows PC.

1 syc center icon

What is Sync Center or mobsync.exe?

Microsoft Sync Center is a Microsoft process that is included in all modern versions of Windows. It is mainly used to synchronize your files with mobile devices over a network location. It also has the ability to run in the background and store offline. For instance, it will run if you have Internet Explorer set to sync pages for viewing offline.

You can kill the Sync Center process after startup in Task Manager under the Processes tab. In Windows 10, you should see it listed as Microsoft Sync Center, like in the image below. In previous versions of Windows, look for mobsync.exe and end it.

2 task manager

Stop Sync Center from Running at Startup

If you don’t use it and don’t want the Sync Center process running during startup, you can stop it. To do that, you need to disable the Offline Files feature. In Windows 10, the easiest way to do that is to hit the Windows Key on your keyboard and type: offline files, select the result from the top or hit Enter. Or, in previous versions of Windows, you can open Control Panel > Network and Internet > Offline files.

manage offline files

Then under the General tab, click the Disable Offline Files button and click OK.

3 disable offline files

You will need to do the annoying restart to complete the process of disabling Offline Files, so you probably don’t want to do this until you have some downtime.

Note that you should only disable this feature if you don’t use it. For example, in the image below, I was using it with my Windows Home Server at one point, but since that server is now disconnected, I decided to kill it from starting up. If you’re not sure if you need to run the process or not, if something stops working after disabling it, just go back in and turn Offline Files back on.

Home Server

Do you use the Windows Sync Center or have any questions? Leave a comment below or join us in our help forums.



  1. kai

    That does not stop it from starting and running at all. Sorry ,that’s just false. Appreciate some real advice on how to stop the service. But it is Microsoft ,and they do not want any user to be able to stop their services .

    • diha

      I already have is disabled, but it still runs every time I boot my PC.

      • v1adimir

        Yup, it’s disabled (from Control Panel, just like in this article) and “Microsoft Sync Center” (and its icon, in Windows Task Manager) can be seen on every login, for a second – before it -automagically- shuts down! :(

        Windows Version 1809 and it’s also disabled in Local Group Policy:

        Local Computer Policy -> Computer Configuration -> Administrative Templates -> Network -> Allow or Disallow use of the Offline Files Feature

        “If you disable this policy setting, Offline Files is disabled and users cannot enable it.”

        The Windows Service, “Offline Files”, Registry name “CscService” is also set to Disabled.

        … Checked from the Registry, even though there’s no need, because services.msc pools the data from there: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\CscService

        P.S. To people in comments: It isn’t “false advice” from the article (author), but instead a Windows error-bug – which we’re trying to solve, as I’m observing the same isse (right now. :))

  2. Dodie

    How do I find and completely remove synch from all computer devices in Windows 10? I am using a single Dell Laptop computer, and don’t understand the need for synch in a single computer environment. Any assistance would be greatly appreciated (I’ve been struggling to try to get things working for over 2 months, not making progress).

    thank you!

  3. Ben

    Did anybody try to remove all registry entries for mobnsync.exe, and if so, what was the result?

  4. Apoly

    I have deleted every possible key related to Sync Manager in the Registry and disabled then deleted the Tasks in the Task Scheduler but it still shows up for a few seconds at every boot. This was tested on Windows 8.1, 10 and 11. The only way for it to not start automatically would be to enable Offline Files in Sync Manager, even if you don’t use it.
    This prevents mobsync.exe from running at every boot but the Offline Files services would be running in the background in that case.

    So it looks to me like this is just a harmless bug that has been around for ages at this point.

Leave a Reply

Your email address will not be published. Required fields are marked *


To Top