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I have been messing around with adding a local server but was running the Server 2019 with a VM that has died. It has SSO setup through azure and wish to delete it as i get emails every day about failed syncs. Thanks for any help.
You can disable synchronization from the service side by running:
Set-MsolDirSyncEnabled -EnableDirSync $false
If you want to make any further changes, it's best to spin up another instance of Azure AD connect and rerun the config wizard.
I tried to run this through powershell but assuming that is not the way I am supposed to. By server side you meant through Azure yeah?
Set-MsolDirSyncEnabled: The term 'Set-MsolDirSyncEnabled' is not recognized as a name of a cmdlet, function, script file, or executable program.
Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
You need to install the module and connect to the service first. Follow the steps here: https://learn.microsoft.com/en-us/microsoft-365/enterprise/connect-to-microsoft-365-powershell?view=o365-worldwide#connect-with-the-microsoft-azure-active-directory-module-for-windows-powershell
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If you've lost access to your Azure AD Connect server (for example, due to a failed VM), you can disable directory synchronization directly from the cloud using Microsoft Graph PowerShell — no need for the deprecated MSOnline module.
Here’s the PowerShell sequence I successfully used in July 2025 on a production tenant:
Install-Module Microsoft.Graph -Scope CurrentUser -Force;
Connect-MgGraph -Scopes "Organization.ReadWrite.All";
$org = Get-MgOrganization;
Update-MgOrganization -OrganizationId $org.Id -OnPremisesSyncEnabled $false;
Get-MgOrganization | Select-Object OnPremisesSyncEnabled; # --> $null
OnPremisesSyncEnabled = $null confirms the sync flag has been cleared.
It may take up to 72 hours for the change to fully propagate and for all objects to switch to "cloud-only" status. No need to install the beta module — this worked using the stable Microsoft.Graph release.
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