I found this tool and located many ROOTKITs virus on my system unknowingly. Microsoft Standalone System Sweeper Beta hxxp://connect.microsoft.com/systemsweeper download and install the beta version of Microsoft Standalone System Sweeper Beta, a recovery tool that can help you start an infected PC and perform an offline scan to help identify and remove rootkits and other advanced malware. In addition, Microsoft Standalone System Sweeper Beta can be used if you cannot install or start an antivirus solution on your PC, or if the installed solution can't detect or remove malware on your PC. Microsoft Standalone System Sweeper Beta is not a replacement for a full antivirus solution providing ongoing protection; it is meant to be used in situations where you cannot start your PC due to a virus or other malware infection. For no-cost, real-time protection that helps guard your home or small business PCs against viruses, spyware, and other malicious software, download To get started, please make sure that you have a blank CD, DVD, or USB drive with at least 250 MB of space. Next, download and run the tool - the tool will help you to create the bootable media required to run the software on your PC. Say thanks !!! ++++ Reps .