Click Start > Run
Type 'msconfig' (without the quote marks into the box and hit 'Enter' (or click 'OK').
Click on the 'Startup' tab.
Click to remove the ticks alongside programs you don't want to run when you boot your PC.
Click 'Apply' and 'OK'
Restart your PC. When you see a message telling you that you're using 'Selective startup', accept the 'Do not show this message again' option.
The foregoing applies to all versions of Windows, except 7., where he first step is slightly different:
http://netsquirrel.co...ig/msconfig_win7.html
Chris