“We’re sorry, but we could not start your Office installation”
When installing an Office 2013 product, you may receive the following error message: “We're sorry, but we could not start your Office installation”.
This may happen if there is another edition of a Office 2013 product installed.
To resolve, try all or some of the following:
If you have uninstalled Office 2013 and are attempting to reinstall:
If you subsequently receive an error such as “We're sorry but Excel has run into an error that is preventing it from starting”, uninstall all Office 2013 programs, and reinstall the 64-bit editions.