Just spent the last two hours getting rid of the "Strathclyde Police UKASH virus" Now this thing shot straight past my Anti virus software, it's definitely a fucker! Basically you get a full screen message saying you've been watching violent images/child porn/other illegal business ( In my case it told me I had been sending out messages linked with terrorism ) And it will ask you to send money via UKASH in order to unlock your pc. Now this a well documented virus how ever the version of It got seamed to be an upgrade and had disabled an awful lot of stuff that I would usually be able to use to quell a virus attack. ( The main one being it disables task manager as soon as it gets on your system) I had to follow instructions from various places this one was the most useful and will fix the problem for most people http://deletemalware.blogspot.com/2011/06/remove-metropolitan-police-ransomware.html Whilst your in safe made be sure to boot up your virus scanner and let it do a full scan before you reboot back into regular windows. You may have to re-enable task manger via reg edit It can do quite a bit of damage to the registry you may have to clear it up manually after wards.