All of the applications on Harry's website are well known and most of us on here use all or some of them already, as well as recommending them to new users. There is no "technical advice" as such on there, just simple, clear explanations of the nasties one can encounter on the web with details of and links to trusted programs which are available to guard against and get rid of malware.
Congratulations to Harry for having the initiative to set up a site which can be easily understood by even very new PC users.
Madeline.

To err is human; to foul things up totally, you need a computer.