I saw this in logins: computername/username
and I deleted it! Now I cannot log into SQL/Server Management Studio 2008. Mixed mode is not enabled, so I cannot use the sa account because it's disabled by default.
What should I do to bring the user login back now it has been deleted? I don't want to re-install everything.
Best Answer
Do you have a backup of master db?
If you have the sa password, you can change to mixed mode in this registry key:
If none of these, reinstall. And don't do it again ;-)