SQL: Restore DB Master

It's very very easy...

Run the Rebuild Wizard (Rebuildm.exe), located in the \Program Files\Microsoft SQL Server\80\Tools\BINN directory to rebuild the master database

Start SQL Server in single-user mode by opening up a command prompt and issuing the command sqlservr.exe –c -m from the \Program Files\Microsoft SQL Server\MSSQL\BINN\ directory.

Open Query Analyzer and run the following query:
restore database Master from disk = 'd:\backup\sql\master.bak'

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Vittorio Pavesi