You can back up the BioStar database in Microsoft SQL Server Management Studio Express. You can download it at http://www.microsoft.com/en-US/download/details.aspx?id=8961.
1. Connect to your database server.
2. Find the BioStar database and right-click it. Choose Task > Back up…
3. Click on Add to choose the location where you would like to save your backup. Please navigate to that location on your machine to ensure you do not overwrite another backup with the same file name.
Then click OK to complete the backup process.