Error code 30015-6 (-1) in Microsoft Office 365/2019/2016

This describes the Microsoft Office 365/2021/2019 error code 30015-6 (-1) solutions in this article. It 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 error code 30015-6 (-1)