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How to convert default instance to named instance in SQL Server 2012?

By mistake I have chosen default instance option and installed. Now I have to change to named instance. How to change?

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Install the named instance, move the databases, agent jobs, etc over to it, then uninstall the now unused default instance.

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Good point migrating anything you've created. I assumed, bad habit, that he noticed the problem immediately after installation. – Steve Mangiameli Jan 7 at 3:51
Instead of moving jobs ( if there are many)- just restore msdb using backup restore. – Kin Jan 7 at 13:24

The simple answer is you can't. If you aren't going to use the default instance, just uninstall it. You can install SQL Server again and create a named instance.

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you can rename your instance but you can not change the named instance to default instance and vice versa.

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What does this add to the existing answers? – Erik Jan 8 at 17:09

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