Windows Server 2008/2008 R2 and SQL Server 2008/2008 R2 are on their extended support phase now. July 8, 2019 for SQL Server 2008/2008 R2 and January 14, 2020 for Windows Server 2008/2008 are the end-of-life dates. Once you hit these dates, you will essentially be running those machines at your own risk in this bloated age of cyber attacks.
Following are the options you have
Path 1: The first path is the traditional evolutionary path of upgrading to a newer version of Windows Server and SQL Server.
Path 2: If you do not want to upgrade to the latest server versions—don’t worry—Microsoft has you covered. Microsoft recently announced a few options for those who want to continue on Windows Server 2008/2008 R2 and SQL 2008/2008 R2. To save money, you could simply move your Windows Server 2008/2008 R2 and SQL 2008/2008 R2 to Azure by using the Azure Hybrid Use Benefit. The only cost you would incur would be computed and infrastructure.
Read more at https://community.connection.com/windows-sql-server-2008-2008-r2-end-life-coming-soon-now/
