I installed Microsoft Word on my computer. Big mistake. Now I have all these programs that I don't want?

Uninstall them with Revo Uninstaller (Freeware. No ads or extra crap). Click "Advanced" when you start the uninstall process and check all the boxes and delete everything from the registry. The program is actually simple and walks you through the process.

Restart your computer and install MS Office. But this time, read every window that comes up and make sure to uncheck suspicious 'add on' programs that are not directly related to Office.

That is what you get for installing illegal software. You have infected your machine with srious malware and it is probably sending out all your personal details tound the Internet and infecting thousands of other machines,

system restore to date before installing

They all come with Microsoft and are all amazing.