Critical Systems Error.

[The Cowboy]

Last night the above appeared in my toolbar. When I click on it, it brings up a web page telling me I have to purchase some kind of programme to fix it.
It has also hijacked my home page and wont allow me to shut the PC down. I have to physically turn it off pressing a button.

Can anyone help me cure this problem as I have used everything in my armoury of tools to get rid of it.
All help appreciated.
Cowboy.

[heathfield]

Download and use 'Smitfraudfix'. You'll find it, and how to use it, on this similar problem forum.

[The Cowboy]

Thank you both for your replies. SmitfraudFix solved the problem heathfield.
Your help is appreciated.
Cowboy

[heathfield]

Glad to hear it, Cowboy. 'Smitfraudfix' has helped me a couple of times when none of the more usual stuff did.