I have a newly installed SharePoint 2013 site that gives 404 error when trying to use the machine name as the address

I have a newly installed SharePoint 2013 server.  I can access the home page with the address http://sharepoint2013/sites/abc/_layouts/15/start.aspx#/SitePages/Home.aspx however if I just use the address which is the machine name of http://sharepoint2013 I get a 404 error.  The default website is turned off.  There is a binding for the sharepoint 80 site in IIS for port 80.  What am I missing to get this site to serve as the default website?
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Mohit NairSenior AssociateCommented:
May be root level site collection have not been created.

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Justin SmithSr. System EngineerCommented:
The above comment is likely the issue.  You need to create one via Central Admin - Application Management - Create Site Collection.  When you get to the URL you should be able to create one on the "/" in the drop down.
pgreetisadaAuthor Commented:
That was the problem.  I created the site I wanted in the subdirectory from where I wanted to put it.  To move it do I have to do a backup/restore?
Justin SmithSr. System EngineerCommented:

First backup the site under /sites/.  Backup-SPSite http://url/sites/site -Path "C:\dir\file.bak".  

Then you need to delete the site.  Remove-SPSite http://url

Now you can restore over the existing root site.  Restore-SPSite http://url -Path "C:\dir\file.bak" -Force
pgreetisadaAuthor Commented:
This was the answer.  Thanks for the help.
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