How to stay safe online
How to create a stronge password
There a lots of differenet anti-virus softwares such as Norton which you can buy in computer stores. There is also Avast which is a very good anti-virus software and most computers and laptops already have it on so you don't have to downloade it. There a other anti-virus softwares some good and some bad. The most important thing is that you have one and it is always upto date and works so you can check it at any time.