This article will discuss how you can fix the error “Setup Error” when installing the 64 bit version of Office.
Remove all traces of the previous Microsoft Office software from your computer in order to fix this problem completely.
Run the MS Office installation procedure again to reinstall MS Office on your PC.
Repair MS Excel
Open Control Panel.
Go to Programs and Features.
Look for Microsoft Office app and right-click on it.
Select Change and choose Quick Repair.
Re-install Microsoft Office
Go to Control Panel.
Click Programs and select Programs and Features.
Look for Microsoft Office and right-click on it.
Select Uninstall. Follow any on-screen instrcutions.