Once you have a computer unit at home or office and you start using the internet, you can also expect virus to invade you computer if you are not careful enough. One of the computer sets in our Church office was destroyed when a young people inserted her USB to extract a file for the youth church. A virus invaded our unit and a malicious site just appeared. After restarting our computer, we just found out that it will not open anymore. Our friend suggested for us to buy a Computer repair software so we could take care of our units. It’s quite expensive nowadays for computer repairs and we need to take extra caution and be responsible enough in using the internet.