Move tempdb mdf and ldf files to new drive

use master
go
Alter database tempdb modify file (name = tempdev, filename = 'D:\data\tempdb.mdf')
go
Alter database tempdb modify file (name = templog, filename = 'D:\data\templog.ldf')
go

USE [master]
GO
ALTER DATABASE [tempdb] MODIFY FILE ( NAME = N'tempdev', SIZE = 61440KB )
GO
ALTER DATABASE [tempdb] MODIFY FILE ( NAME = N'templog', SIZE = 61440KB )
GO

helpful article:
How to move SQL Server databases to a new location by using Detach and Attach functions in SQL Server