This is a good free antivirus from Microsoft. If you don’t have any antivirus software or think it’s not adequate, download and install Microsoft Security Essentials. Restart your computer and make sure malware has been removed. If you couldn’t install Spybot - Search & Destroy in step 2, install it now from desktop or an external USB flash drive.

This also prevents vast majority of malware from starting automatically with Windows, which means it won’t be interfering with security software trying to do its job. Your desktop will look different, this is because only essential Windows services and drivers are loaded in Safe Mode. Select Safe Mode, press Enter and let computer to boot. To do this shut down your computer, then start it and keep pressing F8 key until a menu similar to one below appears. If you can’t do even this, use another computer and save it to a USB flash drive or a CD disk.

In this case download Spybot - Search & Destroy and save it on your desktop. In some instances this will be sufficient to clean your computer, however some malware will prevent you from running, installing or even downloading security software.

Install spybot search and destroy free