I'm sorry if i repeat anything above. Here's all I need to use my computer:
Ubuntu
ubuntu.com *open source*
Ubuntu is a version (distribution) of Linux, it is therefore an alternative OS (alternative to MS Windows). It is easy to install, and unlike Windows it is fully customizable. It, as a distribution of Linux, is the safest OS, therefore it does not need an anti virus program. It rarely ever crashes, users have used it up to 11 years without rebooting.
Opera
opera.com
Opera is a free browser, that is in my opinion the fastest, most reliable and the most comfortable browserin the world of the Internet. Opera used to be adware but now it is freeware. Opera features a pop-up blocker, a tabbing-enabled interface, a speed dial, and full customizability
Mozilla Firefox *open source*
mozilla-europe.org/en/firefox
Firefox is not as fast as opera but it is freeware and open source, it is with one of the safest browsers out there. An advantawge to opera is that it is more customizable.
VideoLAN VLC media player
videolan.org/vlc
The VLC media player plays almost any video or audio format, even damaged files can be played. It can also play downloaded youtube videos. It's interface is slim, it doesn't have a media library, standard it only has a reverse, forward, play and pause botton as well as volume control.
7-zip *open source*
7-zip.org
Z-zip can compress files using different compression algorhytms. It's standart algorythm, 7z, claims to be the most efficient. It can also decompress most formats, it can even decompress installer files.
Note that all of the above programs also work on Ubuntu, the open source & freeware OS.
These programs are the standard programs i install on all of my PC's.