Ad hoc access to OLE DB provider 'Microsoft.ACE.OLEDB.12.0' has been denied. You must access this provider through a linked server.

--Ad Hoc Distributed Queries 
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'DisallowAdHocAccess', 1
GO
EXEC master.dbo.sp_MSset_oledb_prop N'Microsoft.ACE.OLEDB.12.0', N'DynamicParameters', 1
GO

--ComputerHKEY_LOCAL_MACHINESOFTWAREMicrosoftMicrosoft SQL ServerMSSQL15.MSSQLSERVERProvidersMicrosoft.ACE.OLEDB.12.0
--把DisallowAdHocAccess的值改为0