The search function located on the charms bar more powerful than most people realise, and can be your friend in finding anything on your PC.
When you open it up all you need to do is select which part of your system you want to search (if you want to search the whole system don’t select anything) and then type what you’re looking for into the search box. Using this method you can even search external services such as Skydrive, the Windows App Store or Bing.
One neat feature that many people don’t realise is that it’s possible to access the search directly from the Start Screen – all you need to do is start typing what you are searching for in the Start Menu and the search bar will open automatically.