Which are the good software to run computer easily

I am not sure what are you meaning but I think you mean a operating system or maybe a web browser so if this is the case I would tell you that Linux is the better option and if you have windows and want to get rid all those spyware that affect to the internet explorer I think you need to download Mozilla Firefox it is a great web browser with very few crash I have not any crash since I am using it but it depends of your computer you will surft on internet more quickly with Mozilla Firefox and it come with a spell checker so it is very useful for mylot.

what do you mean which software to use computer?