SharePoint User Profile Sync Service Start Issues

The most difficult to start service can drive you crazy.  These are some things I have encountered and how I fixed them:

The most important step is knowing how to trace while you are starting the service.

Tracing Steps:

  1. Open ULS Viewer for the farm server you are trying to start the service on
  2. Open the Live feed from the logs.  File -> Open from -> ULS
  3. Filter by: Category = User Profiles
  4. Start the UPS Sync Service.
  5. You will begin to see events
  6. For each error, there will be some research necessary.  Fix the error, then re-attempt starting the service.

Error: UserProfileApplication.SynchronizeMIIS: Failed to configure MIIS post database

This was an error in a PowerShell profile that was created for All Users.

  1. Open Windows Explorer
  2. Navigate to: C:\Windows\System32\WindowsPowerShell\v1.0
  3. Remove any file like: profile.ps1
  4. The profile is used by the UPS Sync Provisioning and a custom profile will cause a command to fail.


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