Remove Police Central e-crime Unit (PCEU) virus (ransomware)

Attention!!! Under the laws of the United Kingdom and Investigation of Metropolitan Police Service and Strathclyde Police Your computer is locked to prevent illegal activity in the network. From this IP-address [removed] it was visited sites containing banned scenes of violence against people, as well as viewing banned in United Kingdom child pornographic materials. We discovered video files that contain elements of violence were found on your computer. Unsolicited Bulk Messages was send from your computer’s IP address and it was recorded by SpamHaus this month. The computer has been locked to prevent your illegal activities on the Internet. To unlock the computer you are obliged, within 48 hours of receiving notice, to pay a fine of £100.