A family of Microsoft word processing software products for creating web, email, and print documents.
Are the two computers connected to the same printer, using the same printer drivers? In Word, the layout of pages depends partly on the printer driver.
Repairing Office should work; see https://support.office.com/en-us/article/Repair-an-Office-application-7821d4b6-7c1d-4205-aa0e-a6b40c5bb88b.
It does happen that a repair fails, and then you may have to uninstall Office (possibly manually) and then reinstall from your account. See https://support.office.com/en-us/article/Uninstall-Office-from-a-PC-9dd49b83-264a-477a-8fcc-2fdf5dbf61d8.