Just as I suspected my laptop was really infected with viruses. I bought an anti virus last year and had only installed it successfully today. The activation code could not be successfully encoded without an internet connection the reason why it was only installed now. A stream of viruses were detected and cleaned when a scan was made in the whole computer system. It really pays to have an updated anti virus to a laptop otherwise the life span of the laptop will be shortened. Also, the files you have exerted efforts to store will be in the risk of being infected.