Today tried the "Portable Version" of this took me to the web page for Reimage Repair and after going through I had to purchase the product as it needed a Licence Key Number before allowing me to progress.How to logon with an Administrator Account? (I've since identified name of Administrator - but no knowledge of how to get there with Windows 10).Problems encountered before I can go through your above procedure: Okay, back into focus trying to sort out my Windows 10 problem with Avira folder and files still lurking in Computer Program folder which won't allow deletion without System Permission.