window washer question

[the grim gopher]

i left my computer at my friend's house over the weekend and knowing him, im pretty sure he went into some porn sites. i want to get these off of my harddrive for peace of mind, so i ran Webroot's Windows Washer. does this get stuff off permanetely? if not, is there a program that i can use to do that?

 

[TheMajor]

webroot's spysweeper can

 

[the grim gopher]

i have spysweeper, there arnt any spyware or any viruses on my comp, its just i want all the pictures cleaned off of the hard drive for good. any more suggestions?