Enable Synchronization in Windows Server [Complete Guide]
Synchronization in Windows Server ensures that important data, files, folders, settings, user accounts, and time information remain consistent across servers, computers, and connected devices.
Whether you manage a small business server or a large enterprise environment, enabling synchronization helps prevent data mismatches, authentication problems, and unexpected errors.
Windows Server supports several synchronization methods depending on what you want to sync.
You can synchronize the server clock with an internet or domain time source, sync files between servers, synchronize folders with client computers, replicate Active Directory data between domain controllers, and use cloud services to keep files available across multiple devices.
This guide explains every common synchronization method available in Windows Server.
Enable Synchronization in Windows Server [Complete Guide]
Windows Server offers different synchronization features because every environment has different requirements. A company with multiple branch offices may need Active Directory synchronization, while a file server may require folder synchronization between multiple systems. Similarly, every Windows Server should have accurate time synchronization, since many services, including authentication and certificates, depend on the correct system time.
The most common synchronization methods include:
- Time Synchronization for keeping the server clock accurate.
- Active Directory Replication for synchronizing user accounts, passwords, and policies between domain controllers.
- File Synchronization for keeping folders identical across multiple servers.
- Storage Replica for synchronizing storage volumes between Windows Servers.
- Azure File Sync for synchronizing local servers with cloud storage.
- DFS Replication for automatically replicating shared folders.
Each method serves a different purpose. The following sections explain how to configure each one from start to finish.
Method 1: Enable Time Synchronization in Windows Server
Step 1: Open Windows Time Settings
Begin by signing in to your Windows Server using an administrator account. Open the Start menu and search for Services, then launch the Services application. Scroll through the list until you find Windows Time. Double-click the service to open its properties. Make sure the startup type is set to Automatic. If the service is not running, click Start, then select Apply and OK.
Running the Windows Time service ensures your server can communicate with domain controllers or internet time servers to maintain an accurate clock.
Step 2: Configure the Time Source
Open Command Prompt as an administrator. Type the command below and press Enter.
w32tm /config /syncfromflags:manual /manualpeerlist:”time.windows.com”
This tells Windows Server to synchronize its clock with Microsoft’s public time server. If your organization has its own Network Time Protocol server, replace the address with your organization’s server name.
After entering the command, restart the Windows Time service so the changes take effect.
Step 3: Force Time Synchronization
Still in the administrator Command Prompt, type:
w32tm /resync
Windows Server immediately attempts to synchronize its clock. If successful, you should receive a confirmation message indicating that synchronization completed successfully.
You can verify the synchronization status by typing:
w32tm /query /status
The output displays the current synchronization source and other useful timing information.
Method 2: Enable Active Directory Synchronization
Step 1: Install Active Directory Domain Services
Open Server Manager and choose Add Roles and Features. Continue through the installation wizard until you reach the server roles page. Select Active Directory Domain Services, continue with the installation, and restart the server if prompted.
Once installed, promote the server to a Domain Controller if it is not already one.
Step 2: Configure Replication
Open Active Directory Sites and Services from the Administrative Tools menu. Expand your site and locate your domain controllers.
Select the server that needs synchronization. Open the NTDS Settings folder and review the replication connections.
If multiple domain controllers exist, Windows Server automatically manages replication in most environments. However, you can manually trigger synchronization whenever needed.
Step 3: Force Active Directory Replication
Open Active Directory Sites and Services, right-click the connection object, and select Replicate Now.
Alternatively, open an elevated Command Prompt and run:
repadmin /syncall
Windows Server immediately begins synchronizing directory information between all available domain controllers.
After completion, verify that no replication errors appear.
Method 3: Enable DFS Replication
Step 1: Install DFS Replication
Open Server Manager and launch the Add Roles and Features Wizard.
Navigate to the File and Storage Services section.
Select DFS Replication and complete the installation.
Restart the server if Windows requests one.
Step 2: Create a Replication Group
Open DFS Management from the Administrative Tools folder.
Expand the management console and right-click Replication.
Choose New Replication Group.
Follow the wizard by naming the replication group, selecting the participating servers, and choosing the folders you want synchronized.
The wizard also lets you define the replication topology and bandwidth schedule.
Step 3: Complete Synchronization
Finish the wizard and wait while Windows Server builds the replication database.
Open Event Viewer to monitor replication activity and confirm there are no synchronization errors.
Any changes made inside the replicated folders are automatically copied to the other participating servers.
Method 4: Enable Azure File Sync
Step 1: Create an Azure Storage Account
Sign in to your Azure subscription.
Create a new Storage Account and then create a File Share.
This file share will become the cloud destination for your synchronized files.
Step 2: Install Azure File Sync Agent
Download and install the Azure File Sync Agent on your Windows Server.
After installation, register the server with your Azure Storage Sync Service.
Follow the registration wizard carefully. It connects your local server to your Azure environment.
Step 3: Create a Sync Group
Within Azure, create a Sync Group.
Choose your cloud endpoint, then add your Windows Server as the server endpoint.
Select the local folder you want synchronized.
Once configuration finishes, Windows Server begins uploading and downloading files automatically whenever changes occur.
This provides secure synchronization between your on-premises server and Azure cloud storage.
Method 5: Enable Storage Replica Synchronization
Step 1: Install Storage Replica
Open Server Manager and select Add Roles and Features.
Choose Storage Replica under the File and Storage Services section.
Complete the installation.
Restart the server if necessary.
Step 2: Configure Replication
Use Windows Admin Center or PowerShell to configure replication between two Windows Servers.
Specify the source server, destination server, source volume, and destination volume.
Storage Replica supports synchronous and asynchronous replication depending on your network infrastructure.
Step 3: Verify Replication
After configuration finishes, monitor replication status using PowerShell.
Check that replication remains healthy and verify that data written to the primary server appears on the secondary server.
This feature provides continuous protection against hardware failures.
Method 6: Enable Folder Synchronization Using Robocopy
Step 1: Create Source and Destination Folders
Create a folder on the source server containing the files you want synchronized.
Create another folder on the destination server where the synchronized files will be stored.
Ensure both locations have the correct permissions.
Step 2: Run Robocopy
Open an elevated Command Prompt.
Run a Robocopy command similar to this:
robocopy C:\Source \\Server2\Destination /MIR
The /MIR switch mirrors the source folder to the destination, keeping both folders identical.
Step 3: Automate Synchronization
Open Task Scheduler.
Create a scheduled task that runs the Robocopy command every hour, every day, or according to your preferred schedule.
This provides an easy way to synchronize files without installing additional server roles.
Troubleshooting Synchronization Problems
If synchronization does not work correctly, first verify that the server has a stable network connection. Communication interruptions commonly prevent synchronization from completing.
Check that the Windows Time service is running if time synchronization fails.
Review Event Viewer for detailed error messages related to synchronization services.
Confirm that firewalls are not blocking required ports used by Active Directory, DFS Replication, Azure File Sync, or Storage Replica.
Verify DNS settings because many synchronization services rely on proper name resolution.
If replication appears delayed, allow sufficient time for large data transfers to complete before assuming synchronization has failed.
FAQs
What is synchronization in Windows Server?
Synchronization is the process of keeping data, folders, settings, or time information identical across multiple servers or devices.
Why is time synchronization important?
Many Windows Server services depend on accurate system time. Incorrect time can cause login failures, authentication issues, certificate errors, and replication problems.
Does Windows Server automatically synchronize Active Directory?
Yes. Once multiple domain controllers are configured correctly, Active Directory Replication automatically synchronizes directory information between them.
Which synchronization method is best for file servers?
For most organizations, DFS Replication provides efficient folder synchronization between Windows Servers. If cloud integration is required, Azure File Sync is an excellent option.
Can I synchronize Windows Server with Azure?
Yes. Azure File Sync allows Windows Server to synchronize local files with Azure cloud storage while keeping frequently accessed files available locally.
Is Robocopy suitable for synchronization?
Yes. Robocopy is a reliable utility for synchronizing folders and can be automated through Task Scheduler for regular synchronization.
Summary
Enabling synchronization in Windows Server improves reliability, consistency, and data availability throughout your network.
Depending on your requirements, you can synchronize system time, replicate Active Directory, mirror shared folders using DFS Replication, protect storage with Storage Replica, synchronize local data with Azure File Sync, or automate folder synchronization using Robocopy.
For most administrators, combining accurate time synchronization, Active Directory replication, and a reliable file synchronization method creates a stable and dependable Windows Server environment.