I thought I had deleted the webroot spyware from my PC, I am trying to download McAfee internet security and it says it can't do so unless I remove the webroot spyware, when I did a search it is in the hidden files, I tried to delete it and it wouldn't let me, I got rid of the webroot disc along with any passwords etc when I thought I had originally deleted it from my system... any information of how to remove it would be greatly appreciated, thank you