The installation of the reviewed here F-Secure program is absolutely foolproof, even for not very tech-savvy users such as myself:
Simply insert the DVD and follow the instructions on the screen.
The installation takes about half an hour, but the computer can be used while more easily and without any noticeable slowdown.
A special feature: Before you install the one-year version, you can test the program free for one month, so that total comes to 13 months protection.
Happily, is even a manual, which is almost no longer is so common these days; usually you have to instructions in case of need it myself searching and downloading on the net.
Whether the program will protect me in the long term reliable protection against viruses, no one can say in advance, of course, but because of my previous very good impression (the program is running smoothly and without noticeable PC slowdown in the background, is virtually maintenance free and very user-friendly) can I already make a recommendation.
Should there be during the one-year license period to any problems, I'll resent here, of course.