Bugsy,
Just another 'recommendation' if I may.

If you are going off to 'Windows Update', they will 'analyse' your system to see what you HAVEN'T got in the line of updates etc.
They will recommend you, among other things, to load down and install what is known as a 'Critical Update Scheduler'.
This tool stays in your 'Scheduled Tasks' folder, and sets itself by default to contact the windows update site EVERY 5 MINUTES. It is possible to knock the 'scheduler' off; Open 'Scheduled Tasks', Advanced/Stop Using Task Scheduler, and the constant reminders stop. But as soon as you start up again, it sets your scheduler off again. I find it a nuisance, that's all.