The Hidden Program - Malicious Removal Tool
In terms of security, Microsoft offers the free antivirus and anti spyware program called Microsoft Security Essentials to all Windows users. In addition to this program there is another hidden program called the Malicious Software Removal Tool which can be accessed from any Windows computer by typing mrt in the run command. This tool updates each month through the Windows update services. Each month this tool runs very briefly but it is helpful to run the Malicious Software Removal Tool manually each month as well.