Before deciding whether your computer needs cleaning or reformatting, You need to ask yourself some very serious questions. Do you use your computer for any of the following? Online banking/Business purposes/storing sensitive or very personal information? If the answer to any of those questions is yes, then you should immediately disconnect your computer from the net and do a complete format and reinstall. This is because your computer may be infected with backdoor trojans. These will have sent your info to a third party who may use that info for their own purposes. If you use online banking, then you should contact your bank and arrange to have your password changed immediately. You should also, change any other passwords you use as these may have also been compromised. Even if we cleaned the infections, it wouldn`t help to recover the info that may have been gleaned from your system and there`s no guarantees that your computer would be safe to use. If you only use your computer for music/games etc, then cleaning it of infections, is possibly a better option to a reformat. See these two links below, before you decide what you want to do. http://www.dslreports.com/faq/10063 http://www.dslreports.com/faq/10451 If you decide you do want to clean your computer, please visit the UPDATED 5-step Viruses/Spyware/Malware Preliminary Removal Instructions. Please follow all the instructions exactly.