• I also tried with 1433 and 1434. I'm stopping the named instance and try to start the default instance (MSSQLSERVER) but still cannot.

    Let me know if you need some more info

    Check the SQL Server error log for the default instance, or whichever one you can't start. The last error log would be named ERRORLOG with no file extension. Make sure to look through the file for the correct instance -server\instance name gets log at the beginning of the startup process if it gets that far.

    The log should be in Program Files\Microsoft SQL Server\YourInstance\MSSQL\Log\ERRORLOG

    Sue