Most Windows 8 arrives without an email client. You should choose one, install and configure then try that button again.
I am used to using the mail icon on internet explorer to access my email. I just bought a new laptop with windows 8 on it. Is there a way to have my Suddenlink email service linked to the mail button on windows 8. When I click on it I get a message that says Could not perform this operation because the default mail client is not properly installed. If this is not possible what is the easiest way to access my email from Suddenlink? Thanks.