How to backup Microsoft Outlook contact and emails

To backup Outlook database, you first need to search your PC for outlook data file. These files are with pst extension. See below,

 1) Choose > Start Button -> Search -> Search for Files

2) Type *.pst in the seach box and press 'Enter'

3) The outlook data files with names ending with .pst will be listed

4) Copy the paste the files to your backup drive or external hard disk

5)  Below is how I backup into my SD Card 

6) Remember to close Microsoft Outlook before backup because Windows doesn't allow you to copy opened files.