I think the most important decision to make is what to backup. Don't just copy files over and call it a backup, think carefully what do you want and...
Have a look at this tutorial on the site that explains why the icon is there and if you still don't find it useful, it has instructions for hiding it...
Using the PCPP Builder 'Parametric Filter' I've already input your MOBO and CPU information, set Memory speed to 2666. Here are the results. Choosing...