Download and install AVG Anti Virus (the free edition) http://www.grisoft.com/doc/289/lng/us/tpl/tpl01\nAfter installing, Check for updates and scan all files.\n\nTo be safe run an onlne ANti Virus scan at McAfee\nhttp://www.grisoft.com/doc/289/lng/us/tpl/tpl01\n\nand also an online scan at http://www.pandasoftware.com/products/activescan.htm(Panda Anti Virus)\n\nand also and online scan here:\nhttp://housecall.trendmicro.com/\n(Trend Micro Housecall Anti Virus)