Microsoft Office 2010 Service Pack 1 (SP1) provides the latest updates for Office 2010. This service pack includes two main categories of fixes:

• Previously unreleased fixes that were made specifically for this service pack. In addition to general product fixes, these fixes include improvements in stability, performance, and in security.
• All the public updates that were released through June 2011, and all the cumulative updates that were released through April 2011.

32-bit (x86) Office 2010 SP1

Microsoft Download Center: http://www.microsoft.com/downloads/details.aspx?FamilyID=9d2e1282-8b69-418b-afa0-9f61239ec8be

Direct Download Link (US English): http://download.microsoft.com/download/4/0/A/40AA58F5-7CC5-4E74-AB51-5D51C7ED5283/officesuite2010sp1-kb2460049-x86-fullfile-en-us.exe

64-bit (x64) Office 2010 SP1

Microsoft Download Center (US English): http://www.microsoft.com/downloads/details.aspx?FamilyID=e9f3c2d0-c321-4910-a4ce-b2f294b42d65

Direct Download Link: http://download.microsoft.com/download/1/A/8/1A879A5A-EE48-49E7-8831-449A71582173/officesuite2010sp1-kb2460049-x64-fullfile-en-us.exe The Microsoft Office 2010 SP 1 release details are available here