My son's got a virus called Security Tool on his laptop - any ideas how to simply and safely remove it?

My son's got a virus called Security Tool on his laptop - any ideas how to simply and safely remove it?

Sorry the first link was a load of rubbish I think, try this..google for MalwareBytes Anti-Malware.

How to remove Security Tool:

* Download MalwareBytes Anti-Malware.
* Install the mbam-setup.exe file.
* To install it, just press next and don’t edit any options if you are not sure what you’re doing.
* After the installation is ready, MalwareBytes Anti Malware will start automatically and will require you to update the software, so just press OK.
* Go to the Scan tab, select “Perform Quick Scan” and press “Scan.”
* MalwareBytes Anti Malware will now scan all your PC for malware, including the Security Tool.
* You will see a “The Scan completed successfully. Click ‘Show Results’ to display all objects found” prompt once the scan is finished. Press OK.
* Now press “Show Results.”
* You will see a list of malware applications, including the Rogue.SecurityTool. Be sure to select them all and press “Remove Selected.”
* After MalwareBytes Anti Malware finishes the cleaning, you can close the program and be sure your PC is clean.

tinyurl.com/yk7nsxy
Gives you a full description on how to first disable, and then remove it without downloading any more software.