I installed the SQL server Express 2008 R2 and then SQL Server Management Studio 2008 R2 . But during the installation, I could not choose the both SQL and windows authentication mode and an error accrued so I did that just with windows authentication mode.
Now, I want to change the windows authentication mode account to the SQL authentication mode but it shows me an error which is you do not have permission (Although I am the administrator in windows), what can I do?
Following steps are the steps that I went but I got an error:
Server properties >> security >> choose the option of SQL Server and Windows Authentication mode
and the error that I got is attached(access is denied)
Can you please help me?
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