I've finally got some installed and done a restart. Now it wants me to have this one: Security Update for Windows 7 for x64-based Systems (KB3146706) Download size: 22.0 MB Update type: Important
Following the links for more info, I get: click here "This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow remote code execution if Windows OLE fails to properly validate user input. An attacker could exploit the vulnerability to execute malicious code. However, an attacker must first convince a user to open either a specially crafted file or a program from either a webpage or an email message." so I'm thinking maybe I'd better install it?