Eset Smart Security 3.0.669, Help to remove registry entries

Ok here we go!!

I have uninstalled the app conventionaly, removed program data, user application data, and anything else I dould find for eset, but I am unable to remove the eset folder and keys in h/key/local machine/software/Eset/current version/info. I am running Vista 64-bit and although administrator it tells me I do not have sufficient rights when i try to delete, ;so when I try to install the latest version it comes up with errors that it cannot write to these keys and so although it installs version info is incorrect. Any assistance would be appreciated as I would like to remove it.Have tried permissions and even creating a new user Everyone with full rights but to no avail.