If you already have
anti-malware software installed on your computer, download the latest malware definitions and perform a full scan of your computer. However, if you do not have malware removal software, download one and install it. I recommend
Malwarebytes as it has the most current ransomware updates. Other great tools include
AVG,
Norton, and
Microsoft Security Essentials. Whichever tool you decide to use, make sure you download the most current malware definitions. Once you have the application installed with the latest definitions, perform a full computer scan.