Citrix: The desktop you are trying to open is currently available only to administrators

To allow users to connect with an RDP connection, clear “non-administrators Only launch Published Applications” under the Citrix settings of the RDP-TCP listener.

SQL 2005: restore master database

1. Stop all SQL services
2. Start SQL server in single-user mode: sqlservr -m
   OR
   in SQL Server Configuration Manager, click SQL Server 2005 Services. Then, right-click SQL Server and then go to Properties.
   in the Advanced tab, in the Startup Parameters box, type -m and start the service. 
3. Run quary:    RESTORE DATABASE master FROM <backup_device> WITH REPLACE; OR You can restore from managment studio by right-click on database and resore database.
4. Restart the server.