If you want to install office setup & you are having trouble in it, because the Install button isn’t working.
If nothing appears to happen when you select the Office Install button, then you need to follow the given process:
How to Resolve Install Button doesn’t Install Office Problem?
On the General tab, under Browsing history, choose Delete.
Select the check box next to each category you want to delete, and then choose Delete. This can take a while if you have a lot of files.
After the files have been deleted, sign in to install Office.
For more details, visit : www.office.com/setup