<div>
uninstall and reinstall helped. thanks. (yes, it did not allow default)
</div>


<div>
<div class="content wysiwyg-content">
the server has two sql instances<br />
2008R2 instance<br />
2012 instance (named)<br />
<br />
the 2008R2 service has been stopped and only the named instance is being used now.<br />
<br />
what will be the right procedure to install a default instance (not named) 2012 instance to stand alongside of the named instance?<br />
<br />
should i first uninstall the 2008R2? what is the best practise on this?
</div>
</div>


the server has two sql instances
2008R2 instance
2012 instance (named)

the 2008R2 service has been stopped and only the named instance is being used now.

what will be the right procedure to install a default instance (not named) 2012 instance to stand alongside of the named instance?

should i first uninstall the 2008R2? what is the best practise on this?

overwrite 2008 default instance into updated one- best way?

Microsoft SQL Server 2008 is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning. Major improvements include the  Always On technologies and support for unstructured data types.