I have changed (wrongly) a few permissions in the SQL Server Express account. Now I have "sa" account disable, the windows authentication without any permission to change things.
It's all in my local machine, where I have Visual Studio 2008 and 2010, but now I cannot do anything :(
Can I do something or do I need to install everything? If I need to install what I really need to reinstall (since it was installed with Visual Studio)?