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Editorial Team
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Asked: 2026-05-14T04:07:17+00:00

I cannot connect to the SQL Server instance if I do not start management

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I cannot connect to the SQL Server instance if I do not start management studio as a administrator. I am running windows 7, SQL Server 2008, and Management Studio 10.0. If I run as a normal user, the error I get is: 

Cannot connect to ..

Additional information: login failed for user 'COMPUTERNAME\MyUserName'. (Microsoft SQL Server, Error 18456)

for server name I have tried the following:

.
localhost
COMPUTERNAME

Edit: SOLUTION HERE
https://serverfault.com/questions/130434/how-do-i-login-to-sql-server-without-having-to-use-run-as-administrator-when-st

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1 Answer

  1. Editorial Team

    Check how your SQL server authentication is configured. Most probably you have a login defined only for BUILTIN\Administrators, but don’t have one for BUILTIN\Users or for you Windows account.

    Add a new login for BUILTIN\Users or your Windows account (LOCAL_MACHINE\MedicineMan :-)) and map the proper access rights. If you want to do DB admin rights, you should add login for your account. If you want just regular DB read/write, you can go for BUILTIN\Users.

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