In this posting, I'll coach you on how you can figure out what user features administrative legal rights within the server along with walk you Step-By-Step how you can configure SQL Server permitting some other end users to sign in as Administrators to SQL Server. This simple information “Login Failed for User (Microsoft SQL Server, Error: 18456)” indicates anyone came into unacceptable recommendations as soon as logging into SQL Server. Inside the beneath display screen chance, We are logging into 'microsoft' SQL Server Managing Facilities which has a user that will not have administrative permissions for connecting to the server.

You must to decide what user is equipped with privileges to SQL server. Normally this can be a user which you logged with having once you put in SQL Server or the user that is the default owner on computer. To obtain a set of user on the unit (Assuming Microsoft windows Server 2012 or above).

Step-By-Step

Launch Server Manager – Start – Click Server Manager



In the upper right corner, click Tools, then Computer Management



Expand Local Users and Groups (Under Computer Management-System Tools) then click Users

Notice under Description… There is a Built-in account for administering… This is very likely an account that has access to SQL server.  Try logging onto windows with that account that is Built-in account for administering then we can grant rights to the user you want to use to login to SQL Server.



Now that you are logged into Windows with an account that has access to connect to SQL Server, Let’s go in and grant rights to the user that you want to be able to use to access SQL Server.

Step-By-Step

Launch SQL Server Management Studio again and you should be able to Connect

Expand your ServerName, then Expand Security, then Logins.  Click Logins

Right-Click Logins Select New Login



Click the Search Button

Type in the Windows User Name you would like to add as an SQL Administrator then click Check Names  (or you can click advanced and select from a list)



Click Server Roles in the left pane; then turn on the sysadmin checkbox, then click OK



You can then confirm you have sa rights by double-clicking the user name in the left Object Explorer and clicking on Securables



Now you can log out of Windows, login as the user you just granted rights to and all should work fine.

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