Visual Upgrade all Webs in Site Collection with Powershell

While upgrading to SharePoint 2010, if you have chosen not to upgrade to the new user experience at upgrade time, you can upgrade all webs in a site collection after-the-fact with the following script:

Add-PSSnapin Microsoft.SharePoint.PowerShell

$site = Get-SPSite(”http://SiteCollectionURL“)
foreach ($web in $site.AllWebs) { $web.UIVersion = 4; $web.Update() }


    1. Hi SP Admin,

      Its been a while since I’ve done this, but when I look back thru my reference notes, it appears that it should work. Unfortunately, I don’t have a new SP2010 environment upgraded from SP2007 to test.

      There is also a VisualUpgradeWebs() method on a site collection object you can try as well that will upgrade all webs in the site.



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