When you install the SQL Server using Windows Authentication mode, by default, the “sa” account is disabled. Sometimes, due to users/customers request, you may need to enable the sa account. You need to change the authentication mode for SQL server from Windows Authentication Mode to SQL Server and Windows Authentication Mode to use the sa account.
To Change the Authentication Mode:
Follow the steps mentioned below to change the authentication mode from Windows Authentication to SQL Server and Windows Authentication. You need to remember that, the SQL Server service needs to restart to make this change effective.
1. Login to the SQL server instance using SQL Server Management Studio. Right-click on the database instance, and go to Properties.
2. On the Server Properties page, Click on Security. Click on the radio button next to SQL Server and Windows Authentication mode, and click on OK to close the Server Properties page.
3. Once you clicked on the Ok button, we will get the following screen:
As discussed earlier, we need to restart the SQL Server service to make this change effective. After restarting the SQL Server, the authentication mode will be changed to SQL Server and Windows Authentication mode.
Enable the sa Login:
1. Connect to the SQL Server instance using SSMS and go to Security. Expand Security, go to Logins.
2. You can see the sa account is disabled when you install SQL Server using Windows Authentication mode.
3. Right-click on the sa account and go to Login Properties. Specify a complex password for the sa account. By default, the Enforce password policy is checked. (if you don’t want to provide a complex password for the sa account, you can uncheck this option. However, this is not recommended.)
4. Click on the Status page. By default, the sa account will be disabled. Click on the Enabled button to enable the sa account. Click on Ok to close the sa Login Properties.
Thus, sa account is enabled and you will be able to login to the SQL instance using the sa account.
If you want to use a script to enable the sa account, you can use the script mentioned below:
1: USE [master]
2: GO
3: ALTER LOGIN [sa] WITH PASSWORD=N'z43VGYT@Iu*60i'
4: GO
5: ALTER LOGIN [sa] ENABLE
6: GO
Thanks , It is very usefull for me.
Thank you. It help me a lot. =)
thanks !
thanks
Thanks for the help. You gave the solution in an easy to follow format.
Glad you found it helpful. 🙂
thanks
hello
I didn’t get the status page in sa login ….what can i do
In properties it shows only General,server roles,database access
Hello Aarthy,
Which version of SQL Server are you using? Do you have the necessary permission on the instance?
thank you very much it resolves my problem
Glad, you find it helpful 🙂
Than You Sudeepta.
Tnx
The problem is solved i was facing, Thanks..nice post
it doesnt work for me because my accoun doesnt have the right permissions 😦 and there rest of the accounts are disabled, im talking about admin, sa, and local.
If you still able to connect to the Windows server as a Local administrator, then follow this post to reset your sa account:
thanks a lot save my day….
Glad you found it helpful 🙂
Thanks!
It helped me and saved my time.. thanks a lot 🙂
Glad, it was helpful.
when i put the ok Button get the error message..
An exception occurred while executing a transact-SQL statement or batch.
Cannot set a credential for principal ‘sa’.(Microsoft SQL server, Error:15535)
how to fix this error..please help me…..
Have a look at the following support document: http://support.microsoft.com/kb/956177
Hope, this may help 🙂
Thanks Sudeepta
Thanks a lot! I had found everything except for the last step – enable the user account. Thanks again.
Thank you. That’s help a lot
.
Thanks, it was a great help.
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Please let me know how to enable sa account and password during silent install of sql server 2005 express.
Thanx
Thanks man, it very helpfull…
works fine, thanx
help me! I have a problem.
I installed VisualStudio 2008 , and automatically also it installed SQL 2005 Express Edition. I can only join in Windows Autentication mode. The great problem is that I can’t do anything (can’t change to mixed mode, can´t enable sa user, can’t anything!).. I also try to change permissions by SQLCMD but neither.
What can I do in this case?..
I hope your answer..
Thank you..
Yes superb. Thanks
Thank you!! Solve my problem!
Thanks a lot…!!!!!!
Thank 😉
Thanks buddy it really helped
Useful, thank you!
nice tutorial thanks
Excellent………….
Thanks! Very helpful
Thanks
it was really helpful. Many thanks for the post.
Thank you! You saved the day for me!
Thanks for helped me.
how about if the administrator account in windows authentication is also been disabled… what am gonna do w/o reinstalling the sql server. im using sql servel 2008 r2.
Hello Jeff,
If your server is part of a domain, your domain admin should be able to reset the local administrator password on your SQL server box.