I am trying to install "SharePoint Online Management Shell" when I do so got below error.
This application requires the following to be installed:
- PowerShell 3.0.
When I checked my Power Shell version its greater then 3.0
looks like you need to install the PowerShell 3.0 as it is required. You can download the PowerShell 3.0 from here
Once you install it then retry to install the SPO management shell. Also take a look here:
SharePoint Online Management Shell requires PowerShell 3.0 installed:
Please install PowerShell 3.0 here:
This article seems to address your exact issue:
It specifically states to Download and Install Windows Management Framework 5.1 if your error appears:
After installing, run your SPO Management Shell installer again.