Can't Open links/attachments in e-mails

I cannot open links or attachments in e-mails with Microsoft Outlook.

I click on them and nothing happens. I then go to close out and I get a message that says NOT RESPONDING.

Any ideas?

What operating system are you using?

Is this a new thing, everything was working okay before?

Installed anything new lately?

Virus/malware scans all okay?