This article describes the Microsoft Office 365/2021/2019 installation program error code 1402 solutions. Office 365/2021 Installation Error Code 1402 was found that many users having trouble to repair or install office programs on their Windows and Mac computers. The majority of issues are due to the Office licensing, Windows updates, insufficient system resources like disk space, internet connectivity, etc. So this article provides the solution for different kind of office issues related to office 365 error code 1402.