Service Pack 2 (SP2) for Microsoft SharePoint 2010 contains new updates which improve security, performance, and stability. Additionally, the SP is a roll-up of all previously released updates.
Download it from this link http://www.microsoft.com/en-us/download/details.aspx?id=39672
Download it from this link http://www.microsoft.com/en-us/download/details.aspx?id=39672