SQL Server Master Database Restore
By: Eric Blinn
In this section we will cover questions like: would you ever need to restore the master and how do you restore the master database.
Is there ever a need to restore the SQL Server master database?
The master database would need to be restored in the event it showed corruption during a consistency check. It could also need to be restored if a server becomes corrupt and Windows is reinstalled. After installing SQL Server the master database that was installed with the instance would need to be replaced with the previous version.
How to restore the SQL Server master database?
The master database cannot be restored in the traditional manner. In fact, if it is significantly corrupted, it may not even allow the service to start.
Check out this separate tip that shows in great detail how to restore a corrupted master database.