I attempted to run a backup and got an error. The command and error are listed below: Stsadm -o Backup -directory <backup folder> -backupmethod full An indexer is not assigned to the Shared Services Provider 'SharedServices_64bit'. I then went to Shared Services Administration: SharedServices_64bit and under Search clicked on Search settings. The heading of the page that came up was Error, followed by An indexer is not assigned to the Shared Services Provider 'SharedServices_64bit'. Configure an indexer and a search database for this Shared Services Provider I clicked on the "Configure an indexer ... " link and got this: An unhandled exception occurred in the user interface.Exception Information: The specified account name is invalid. Parameter name: account I checked the Event logs and found the following Search error, but no mention of what account was giving me trouble. Event Type: Error Event Source: Office SharePoint Server Event Category: Office Server Shared Services Event ID: 6482 Date: 10/25/2010 Time: 2:27:31 PM User: N/A Computer: ALIGN Description: Application Server Administration job failed for service instance Microsoft.Office.Server.Search.Administration.SearchAdminSharedWebServiceInstance (6174eab4-c854-4eec-b4e5-3f003e5cc290). Reason: The specified account name is invalid. Parameter name: account Techinal Support Details: System.ArgumentException: The specified account name is invalid. Parameter name: account ---> System.Security.Principal.IdentityNotMappedException: Some or all identity references could not be translated. at System.Security.Principal.NTAccount.Translate(IdentityReferenceCollection sourceAccounts, Type targetType, Boolean forceSuccess) at System.Security.Principal.NTAccount.Translate(Type targetType) at Microsoft.Office.Server.Utilities.WindowsSecurity.ValidateAccount(NTAccount account, Boolean throwIfInvalid) --- End of inner exception stack trace --- at Microsoft.Office.Server.Utilities.WindowsSecurity.ValidateAccount(NTAccount account, Boolean throwIfInvalid) at Microsoft.Office.Server.Administration.SharedAccessRule.Validate() at Microsoft.Office.Server.Administration.SharedComponentSecurity.SetAccessRule(SharedAccessRule accessRule) at Microsoft.Office.Server.Administration.SharedComponentSecurityFormatter.DeserializeFromXml(XmlReader xmlReader, SharedComponentSecurity& security) at Microsoft.Office.Server.Administration.SharedComponentSecurityFormatter.FromXmlString(String xml) at Microsoft.Office.Server.Administration.SharedResourceProvider.InternalGetAccessControl() at Microsoft.Office.Server.Administration.SharedResourceProvider.GetApplicationSecurity() at Microsoft.Office.Server.Administration.SharedWebServiceInstance.ProvisionSharedResourceProviderWebConfigSettings(SharedResourceProvider srp) at Microsoft.Office.Server.Administration.SharedWebServiceInstance.Synchronize() at Microsoft.Office.Server.Administration.ApplicationServerJob.ProvisionLocalSharedServiceInstances(Boolean isAdministrationServiceJob) For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Immediately following that I get a similar error for Excel: Event Type: Error Event Source: Office SharePoint Server Event Category: Office Server Shared Services Event ID: 6482 Date: 10/25/2010 Time: 2:27:32 PM User: N/A Computer: ALIGN Description: Application Server Administration job failed for service instance Microsoft.Office.Excel.Server.ExcelServerSharedWebServiceInstance (7a1c67d7-b91f-4ed0-998a-f67b17b1c07e). Reason: The specified account name is invalid. Parameter name: account Techinal Support Details: System.ArgumentException: The specified account name is invalid. Parameter name: account ---> System.Security.Principal.IdentityNotMappedException: Some or all identity references could not be translated. at System.Security.Principal.NTAccount.Translate(IdentityReferenceCollection sourceAccounts, Type targetType, Boolean forceSuccess) at System.Security.Principal.NTAccount.Translate(Type targetType) at Microsoft.Office.Server.Utilities.WindowsSecurity.ValidateAccount(NTAccount account, Boolean throwIfInvalid) --- End of inner exception stack trace --- at Microsoft.Office.Server.Utilities.WindowsSecurity.ValidateAccount(NTAccount account, Boolean throwIfInvalid) at Microsoft.Office.Server.Administration.SharedAccessRule.Validate() at Microsoft.Office.Server.Administration.SharedComponentSecurity.SetAccessRule(SharedAccessRule accessRule) at Microsoft.Office.Server.Administration.SharedComponentSecurityFormatter.DeserializeFromXml(XmlReader xmlReader, SharedComponentSecurity& security) at Microsoft.Office.Server.Administration.SharedComponentSecurityFormatter.FromXmlString(String xml) at Microsoft.Office.Server.Administration.SharedResourceProvider.InternalGetAccessControl() at Microsoft.Office.Server.Administration.SharedResourceProvider.GetApplicationSecurity() at Microsoft.Office.Server.Administration.SharedWebServiceInstance.ProvisionSharedResourceProviderWebConfigSettings(SharedResourceProvider srp) at Microsoft.Office.Server.Administration.SharedWebServiceInstance.Synchronize() at Microsoft.Office.Excel.Server.ExcelServerSharedWebServiceInstance.Synchronize() at Microsoft.Office.Server.Administration.ApplicationServerJob.ProvisionLocalSharedServiceInstances(Boolean isAdministrationServiceJob) For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. I tried stopping and starting search and resetting IIS but to no avail. Any ideas?