Cannot initialize the data source object of OLE DB provider "Microsoft.ACE.OLEDB.12.0" for linked server "(null)".

Error:

OLE DB provider "Microsoft.ACE.OLEDB.12.0" for linked server "(null)" returned message "Unspecified error".

Msg 7303, Level 16, State 1, Line 1

Cannot initialize the data source object of OLE DB provider "Microsoft.ACE.OLEDB.12.0" for linked server "(null)".

Solution:

There are several solutions on this, but for us the below solution worked great.

Step 1:

sp_configure 'show advanced options', 1;
RECONFIGURE;
sp_configure 'Ad Hoc Distributed Queries', 1;
RECONFIGURE;
GO

Step 2:

USE [master]
GO


EXEC master . dbo. sp_MSset_oledb_prop N'Microsoft.ACE.OLEDB.12.0' , N'AllowInProcess' , 1
GO

EXEC master . dbo. sp_MSset_oledb_prop N'Microsoft.ACE.OLEDB.12.0' , N'DynamicParameters' , 1
GO

Step 3:

Full permissions on C:\Users\MSSQLSERVER\AppData\Local\Temp and C:Windows\ServiceProfiles\NetworkService\AppData\Local  for windows nt groups

Thanks to:

http://stackoverflow.com/questions/26267224/the-ole-db-provider-microsoft-ace-oledb-12-0-for-linked-server-null