Currently Being ModeratedNov 13, 2013 7:11 AM (in response to sarahpeller)
Yes. Some of the instructions in this community can be rather detailed. The URLs below point to such instructions. If you are not comfortable going though these instructions you can make an appointment to go to the Genius bar at an Apple store. They will diagnose and update your software issues for free. Be sure to have a current backup before you make any major software changes, including taking it in to Apple for software repairs.
Genius reservation http://www.apple.com/retail/geniusbar/ .
Time Machine Basics: http://support.apple.com/kb/ht1427
Most commonly used backup methods:
Methodology to protect your data. Backups vs. Archives. Long-term data protection: