To fix this, simply try to run any Microsoft Office program (Word, Excel, Power Point) as Administrator. It is possible that Microsoft Office is not being activated on your computer due to permission issues. So, let us go ahead and take a look at some of the methods that are known to fix Microsoft Office Activation errors on a Windows computer. This problem can also occur if you are trying to activate Office 365 on a computer on which an older version of Microsoft Office was previously installed.
