Stop it using Get-SPServiceInstance and Stop-SPServiceInstance <guid>
But it will be stuck on stopping, so we need
- stsadm -o enumservices > c:\services.txt - Those gave me a list of services and showed me what the name of the service I need to stop is.
- stsadm -o provisionservice -action stop -servicetype "Microsoft.Office.Server.Administration.ProfileSynchronizationService, Microsoft.Office.Server.UserProfiles, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" -servicename FIMSynchronizationService
