Trying to download the add in power pivot to Excel 2010. Add in is showing as an active application add in but the tab is not showing in the ribbon. I went to manage com add ins and the power pivot is not checked. I will check the box and close the window but the tab never shows. When I go back into the com add in the box is not checked. It keeps unchecking itself. I have done everything I can thnk of and everything that has been suggested that I have found online.

HELP!

Hi Helpneeded,

Could you tell me the version of Excel 2010 and the version of PowerPivot Add-in in your computer?

I suggest you refer to this thread about "Troubleshooting Guide for PowerPivot Installation Problems", there are some checklists, for people encounter PowerPivot add-in installation Issue.

https://social.msdn.microsoft.com/Forums/sqlserver/en-US/5f2895f5-84c1-423f-9c84-abf71ad4184b/troubleshooting-guide-for-powerpivot-installation-problems?forum=sqlkjpowerpivotforexcel

You also need to check the Hardware and Software requirements, please refer to this article:

https://msdn.microsoft.com/en-us/library/gg413462(v=sql.110).aspx

Please try these methods first and provide more information about your Excel 2010.

I'm glad to help and follow up your reply.

Regards,

Emi Zhang
TechNet Community Su