Actually, it's fairly simple.
step 1) turn off by right clicking the symbol on the bottom right of screen
step 2) find it on your start menu & drag it to the desktop
step 3) move both the one from your desktop & the one you moved there to the trash
step 4) go into your computer, click on harddrive & find it in the programs & delete it
step 5) open your trash & permantently delete all of it
step 6) restart your computer
These six steps almost always work, unless it's a really well made one- from your description, I doubt it is.