Top 17 ways to screw up the next Windows

[Safe-Keeper]

I hate the freaking persistent security system that's suddenly been added to my Windows copy by some update. Every time I open an image using Windows Explorer it tells me the picture is from an unknown source and "might be useful, but might also FUBAR your computer". I uncheck the "always tell me this" checkbox... and get the same window again, the next time I open an image.