Move multi wordpress site

It sounds a bit like you really don’t need the multisite right now since you only have one subsite and you want the subsite’s content and features on the main site.

If you have content you need to keep for later use on the present main site then export all that content to a new subsite and then export the present subsites content and features to the main site.

Your main site will still be the network admin just fine with your content and such. You can then delete the ‘donor’ subsite if you wish or just keep it handy for later along with any spare subsite you created to contain your old main site content.

Else just move the subsite’s content to the main.

I need the multisite . I just need to move the sub site as main site. But how to move ?

Just as I outlined above.

Use the export feature under tools to export the content from the subsite and import that same content to the main.

Enable the theme you had on the subsite for the main site. And match up the plugins.

That should take care of things unless you customized your subsite… You’ll need to deal with that customization manually but you’ll still have the subsite for reference.