I need to reinstall microsoft office 2010 for home and student

Do you have the disk that you used for the previous installation

Else try this

To download the Office installation source for product key card license type, do the following and see if it helps:

1. Locate your 25-character Product Key. You must have a valid Office 2010 Product Key to install and activate your downloaded software.
2. Return to www.office.com/productkeycard.
3. Click download.
4. Follow the steps online to download and install Office 2010.

Hi,

First you need to uninstall Office 2010, please try the Fix it tool in this article:

https://support.office.com/en-nz/article/Uninstall-or-remove-Office-2010-90635a1d-aec8-4653-b358-67e1b766fc4d?ui=en-US&rs=en-NZ&ad=NZ

Then follow the steps provided by Joseph Ndlovu.

Regards,

Melon Chen
TechNet Community Su