Yes, unsinstalled and then installed again, but of no success the issue persists..

Used both SQL Server 2014 Express installation and SQL Server 2014 Standard to install the SSMS but same...

No, using the SSMS 2014 as administrator does not help, receiving the same error.

Regards,

Thanks!! Is it OK to reapply the service pack when it is already installed earlier.

It is SQL server 2005 standard edition Service Pack 2..

No Upgrade is performed on the SQL Server. I have not tried to open the same in BIDS or VS.

Here is...