Install-Module : The term 'Install-Module' is not recognized as the name of a cmdlet
Since you are using the lower version of PS:
What you can do in your case is you first download the module in your local folder.
Then, there will be a .psm1 file under that folder for this module.
You just
import-Module "Path of the file.psm1"
Here is the link to download the Azure Module: Azure Powershell
This will do your work.
Another GUI based option to fix this error is to download the PackageManagement PowerShell Modules (msi installer) from Microsoft website and install the modules.
Once this is installed you will not get "'Install-Module' is not recognized as the name of a cmdlet" error.
You should install the latest version of PowerShell, then use this command Install-Module Azure
to install azure module. Because from Powershell 5.0 onwards you , you will be able to use the cmdlet to Install-Module, Save-Module
PS > $psversiontable
Name Value
---- -----
PSVersion 5.1.14393.576
PSEdition Desktop
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
BuildVersion 10.0.14393.576
CLRVersion 4.0.30319.42000
WSManStackVersion 3.0
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1
More information about install Azure PowerShell, refer to the link.