Make no mistake — running Windows Update is an essential part of keeping your PC secure. But there's nothing more annoying than Windows suddenly deciding that it's going to install an update and shutting everything down in front of your eyes without so much as a dialog box appearing. Here's how to stop that happening.
I can live with Windows popping up a reminder or two that you need to reboot for a crucial update, but occasionally it decides to ignore that step altogether and simply shut you down, casting aside any unsaved work as it goes. It's tempting under those circumstances to switch off Windows Update altogether, but that's a really bad idea.
Fortunately, our friend the How-To Geek has a fix in the form of a simple registry hack that prevents Windows from shutting down for an update if there's a user logged in. It's dead easy to do, and well worth the effort compared to the nuisance of gradually watching every open application close. Hit the post for full details.