Now before we start, everyone has learned to backup what they can't lose. OK, with that out of the way, Microsoft has System Restore which is as safe as it gets then a refresh that is pretty safe and then other ways to repair 8. Here's a link on that.
I have looked up everything I could about customizing the tiles for Windows 8, left-click or hold down, but nothing is working, and when I Google the problem, I just get loads of sites that tell me how to normally do it.
I have a feeling I may have disabled something somewhere but I have no clue how or when, because it used to work.
I hope someone out there can help me!