Every month with Windows updates you may notice update's to the Microsoft Malicious Software Removal Tool which Microsoft updates with all their updates on "update Tuesday"
But here is the problem.
It is not in the programs on your computer , so how do you run it?
Here is the answer.
Go to the start menu and type run , then a dialogue box will appear and then type MRT.
It will then prompt you to do a scan from quick , to a full scan and if you have any doubt you should do the full scan.
A full scan may take a full night so let it run overnight.
Remember this is no substitute for an antivirus program.