Cortana is one of the biggest features to hit the desktop. It has been imported from Windows Phone to help you with all your search functions. Simply speak to it and get answers. Sometimes with a little sass. One bit of warning, the technology behind the scenes is not the most secure so be careful what you search for. Open Cortana by clicking the search field in the task-bar and select the notebook icon in the left pane. Click Settings then enable the "Let Cortana respond when you say "Hey Cortana"" option. Of course you'll need a working microphone attached to the computer for the function to work.
The Start Menu is also customizable. If you dislike the live tiles you can right click them and choose "Unpin". You can then choose an app form the "All Apps" list and choose "Pin to Start" and create your own start menu.
The File Explorer Quick Access view is very handy for accessing those places on your PC you go to the most. Some would prefer to have the old "This PC" or "My Computer" view. This is simple to change. Open File Explorer (the folder on the task-bar) then select View > Options form the top ribbon. A "Folder Options" window will appear. Click the "Open File Explorer drop-down menu then click the "This PC" option. Click OK and done.
Another great feature is the ability to schedule your restarts. This is particularly handy when Windows updates itself and needs to restart to finish install. Click the window pane Start Menu and click "Settings". Click Updates and Recovery > Windows Update. Click the "Advanced Options" link and tell Windows to notify you to schedule a reboot when updates are ready.
Solitaire is back! Just do a search for Solitaire and voila! You now have Solitaire back.
If the Microsoft Office ads are bothering you they can be silenced! Click the start pane and go to "All Apps". Find the "Get Office" app and right click then choose uninstall. Gone!
If any of these tips are useful to you leave a comment and let us know what worked for you. If you want to leave another system tweak or tip fell free.