The tool, currently in beta, is called Microsoft Standalone System Sweeper, and promises to help start an infected PC and perform an offline scan to help identify and remove rootkits and other advanced malware.
In addition, Microsoft says the System Sweeper utility 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.
It is available for both 32-but and 64-bit Windows systems and uses the same antivirus engine as the Microsoft Security Essentials product.
Just last month, the company shipped a free security tool called Microsoft Safety Scanner to offer on-demand scanning to helps remove viruses, spyware, and other malicious software. The safety scanner works with existing antivirus software.
These utilities are a big part in helping Microsoft to cut down on support costs stemming from malware infections.