How do I start over in wordpress?
 

I have a wordpress install with 37 old posts on It, I don't want to delete those old posts as they SE listings. I do want to start doing new updates on It but I don't want the old posts to show in any categories, tags or the index, I want all those clean. So a clean start except keeping the 37 post pages and tag pages etc.

Are you also upgrading to a later version of Wordpress ?.

Back up your database,that is where your posts are saved,so if you make any mistakes you have a recovery plan.

Make a list of the plugins and their versions you have installed.

Check some of your indexed se pages to see the post structure and make note of it.
Are the se listings showing as domain.com/post.html or domain.com/tag/post.html or domain.com/category/post.html etc.

Avoid losing your existing traffic.

Make sure you keep the same structure when you rebuild it or the incoming links you have will not hit their intended mark and the pages listings will drop and re-index most likely at a lower position in the serps due to lack of incoming links to new post structure.

Yes you can do permanent redirects but I find that some prior planning and using the same post structure saves you bouncing around in the serps till it stabilizes.

The job itself is not that difficult one you have a plan to follow. :thumbsup