If you have just bought a new computer or laptop over Christmas then don't forget to set up your recovery discs as soon as possible. Years ago the discs were shipped with the computers, but now due to manufacturing cutting of costs it is left to the consumer to make their own. This is important and should be done as quickly as possible. Setting up the discs usually requires around 3/4 discs and can take up to an hour, so be prepared for a wait. The recovery discs will act as a factory default safety net in case you run into problems down the line with the computer.
Using the discs in the future, you can then restore your PC to it's initial 'factory default state'. Of course this is helpful when you want to just start over again without the hassle of copying files and programs.
The media creator is usually found within the start menu, then all programs (or programs) and then within the manufacturer of the laptop/computer folder. So for example, if it was a Toshiba laptop, the recovery disc creator would be found in Start>All programs>Toshiba>Recovery discs.
There may be variations of what the recovery discs are called, but essentially they should all be in the start menu somewhere!