I purchased a laptop from sony which comes with Windows XP OEM edition a year before. I am thinking to format the computer and reinstall a windows copy. I decide this because of virus. But i having doubt because i have windows OEM edition in my laptop. I showed it to a technician. He suggest me to get the restore disk which got from the manufacturer, of my windows copy which i don't have. I do not have any restore disk. I want to install windows but thing are not working. Now what are the other solution for installing a fresh copy of windows.