This describes the Microsoft Office 365/2021/2019/2021 Installation program Error code 1-6 solutions in this article. Office 365/2021 Error Code 1-6 was reported that many users having trouble to repair or install office 365 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 Microsoft office 365 installation Error code 1-6.