Disable Entra Connect Sync

Open Powershell as an administrator and run the following commands:

Set-ADSyncScheduler -SyncCycleEnabled $false

Install-Module Microsoft.Graph -Force

Connect-MgGraph -Scopes "Organization.ReadWrite.All"

Get-MgOrganization | Select-Object DisplayName, OnPremisesSyncEnabled

$OrgID = (Get-MgOrganization).Id

$params = @{ onPremisesSyncEnabled = $false }

Update-MgOrganization -OrganizationId $OrgID -BodyParameter $params

Verify sync is disabled:

Get-MgOrganization | Select-Object DisplayName, OnPremisesSyncEnabled

Uninstall Entra Connect Software.