When restoring a SQL Server database back-up file in the Hosting Control Panel, you are limited to using BAK files that you created using the back-up feature in our Hosting Control Panel. You are not able to restore a BAK file that was created outside of our system. There are several reasons we have established this restriction:
Based on this information, we observe the Microsoft® security recommendations and disallow restores of SQL Server BAK files that did not originate from a backup within our system. Therefore, you are not able to use the SQL Server restore feature to import a BAK file that came from a database outside our system or from a different hosting account.
For additional information about restoring your database, see the following articles: