|Most new laptops come with a 3-months trial of Norton Internet Security pre-installed. This is notorious for slowing down Windows because it uses a lot of memory, particularly if the installed ram is not very generous to start with. Vista needs at least 2GB ram to run at a decent speed, even without Norton installed.|
If it's on your laptop I would remove it and install something which uses less memory. Norton software is also notorious for leaving bits behind when you think you've uninstalled it. This can make it impossible to install an alternative security product. With that in mind, Symantec have released the 'Norton Removal Tool' here:
If you want an alternative, there's an excellent free one called 'Comodo Internet Security' which uses less than half the amount of ram that Norton uses. I use it myself. Get it here:
When you've installed it, be sure to turn off the Windows Firewall because, unlike some other firewalls, Comodo doesn't do that for you and it's not wise to have two software firewalls running at the same time.
You should also check what programs are being loaded automatically everytime Windows starts. New computers may have up to half-a-dozen startup programs running which you don't need (like some of the things in the system tray). They all deplete the amount of ram that's left over for Windows to use.
All you should need in the system tray are icons for:
Speaker Volume Adjustment
Anything else in there can be safely disabled to free up more memory. They may each have a right-click menu where you can disable them. Or you can use the Startup Manager built-in to Windows Defender which itself is built-in to Windows Vista.