Hahahaha...... I am using my awesome desktop for about 3 Years without an antivirus and I never had any problem even after I surfed to virus sites. I prefer never to install an antivirus because according to me, it creates more problems than solving them. So, you must find a way to browse your HDD and to recover your laptop files. Get another small 250GB HDD Installed into your laptop. Then, temporarily install a copy of pirated windows onto your new HDD and see the old HDD and make a backup of important files, then visit the customer care for your laptop and get a new copy of Windows installed on your PC. Now replace all old inportant files you had and your computer is good as new If you had a desktop I could greatly help you.