You may get the following errors below if you wish to launch (re-configure) the AD-Connect tool or start the synchronization service
AD Connect Sync Service not running
To resolve this issue, launch the Windows Services
– From the “run” command, type services.msc or from the Server Manager, under tools, search for services. There are many other ways to launch this, use the one you are most comfortable with.
AD Connect Sync Service not running
To ensure the service is started automatically, right click on the service name “Microsoft Azure AD Sync”
– Click on Properties as shown below
As we can see, the service is set to start Automatically, then we are good to go.
Now, let’s start the service by click on start. As we can see below, the service is starting.
As we can see from the image below, the service has started and running as desired
Now you can launch the AD Connect Tool once again or the Synchronization Service from the start up menu
As we can see, the service is running and now we can launch the Synchronisation Service Manager
Lets initiate a delta sync and you can see from the image below the status is in progress
I hope you found this blog post on AD Connect Sync Service not running helpful. Please let me know in the comment session if you have any questions.