Uninstalling Internet Security

When I try to uninstall Internet Security to install another program, I am told I have no access to a folder in a drive that does not exist on my computer. I have tried downloading CIS again, but I am told it already exists on my computer and do I want to uninstall that first, at which point I get the original message again, so I am in a vicious circle. Any ideas? Thanks

You can try this clean up tool.

Finally got around to it and it works! Many thanks. :smiley: