how to login using sa in sql server 2008

Actually i have disabled all the administrators accidentally. Now i don't have the full control over management studio as i am not able to edit or delete anything. I heard that we can login using sa account and create new administrators. Now i want to know how to login using sa account and how to create new administrators. Please help me to sort out this problem
Posted by Prince Mahajan 5/4/2014 5:54:55 PM
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Harpreet Singh
I began programming with C++ when i was 17. Then at the middle of my study .NET came. Then I began to read C# and VB.NET. By the time i learnt SQL and ASP.NET, and developed some websites such as news portals that are active now. Currently i am running my own Software company.
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