Ai avut dreptate, masterul era marcat ReadOnly, Dar dupa ca i-am setat atributul corect, la tentativa de startare a serverului primesc erorile:

2009-03-28 13:45:10.82 spid6     Device activation error. The physical file name 'C:\Program Files\Microsoft SQL Server\MSSQL\data\model.mdf' may be incorrect.
2009-03-28 13:45:10.82 spid8     Device activation error. The physical file name 'C:\Program Files\Microsoft SQL Server\MSSQL\DATA\pubs.mdf' may be incorrect.
2009-03-28 13:45:10.82 spid10    Device activation error. The physical file name 'C:\Program Files\Microsoft SQL Server\MSSQL\DATA\northwnd.mdf' may be incorrect.
2009-03-28 13:45:10.84 spid5     Device activation error. The physical file name 'C:\Program Files\Microsoft SQL Server\MSSQL\DATA\msdbdata.mdf' may be incorrect.
2009-03-28 13:45:10.84 spid8     Device activation error. The physical file name 'C:\Program Files\Microsoft SQL Server\MSSQL\DATA\pubs_log.ldf' may be incorrect.
2009-03-28 13:45:10.84 spid5     Device activation error. The physical file name 'C:\Program Files\Microsoft SQL Server\MSSQL\DATA\msdblog.ldf' may be incorrect.

Ideea este ca in locatiile din mesaj intradevar, nu sunt aceste fisiere, deoarece directorul DATA are alta locatie, diferita de cea default.

Aici m-am blocat.

Multumesc