For those (of us) that want to stay on the old familiar Desktop when using Win-8, having the charms bar pop up when we touch the right corners of the screen, is just not acceptable.
Here's a fix that removes that activity.
1. Open Registry Editor (press Win+R, type regedit.exe in Run dialog...
accidentalactivation
charms bar
configuration
desktop environment
disable charms
dword value
edge ui
fix
gaming
immersiveshell
mouse settings
registry editor
screen corners
system settings
taskbar
user experience
user interface
windows 8
windows customization
windows tweaks