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Are the older installations of Microsoft SQL Server needed after you installed Server 2012? I've been doing some cleaning and noticed I've a whole list of SQL Server installation.

When I installed Server 2012, I clicked the upgrading option but previous versions are still present. I'm guessing they are needed but I want to be sure.

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up vote 2 down vote accepted

This is a hard question. Many of us keep the older instance running for some reason or another.

The safe path is, when done with the older stuff, to:

1) Stop and disable the services from the older version 2) Check the search path for the OS, make sure it just references the new SQL Server

That said, I expect it is safe to uninstall the older SQL versions.

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Thank you for your answer. – reaper_unique May 23 '12 at 8:35
@reaper_unique, it is ok to vote for answers that are useful. – samsmith May 23 '12 at 13:51
I need 15 points for that, and I don't have that yet on serverfault ;) – reaper_unique May 23 '12 at 14:26

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