Delete All Document Versions in SharePoint Document Library using PowerShell

Requirement is to : Delete all old document versions in SharePoint site collection to free-up some disk space occupied by document versions.

Here is the PowerShell script to delete all document versions in a site collection:

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Add-PSSnapin Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue #Get the Site Collection $site = Get-SPSite "http://sharepoint.crescent.com/sites/operations"   #Loop through all sites in the site collection foreach($web in $site.AllWebs) {   #Iterate through all Lists   foreach($List in $Web.Lists)  {  #Get only document libraries & Skip Hidden   if( ($List.BaseType -eq "DocumentLibrary") -and ($List.EnableVersioning) -and ($List.Hidden -eq $false) -and($List.IsApplicationList -eq $false) )      {      #loop through each item       foreach ($item in $list.Items)       {     if($item.File.Versions.Count -gt 0)     {         # delete all versions      Write-Host "Deleting $($item.File.Versions.Count) Version(s) on: $($web.URL)$($item.URL)"       $item.file.Versions.DeleteAll()     }       }   }  }  }    $site.Dispose() Write-Host "Script execution Completed!"

This PowerShell script will delete old versions in SharePoint document libraries for the entire site collection.

Reference:
http://www.sharepointdiary.com/2013/06/delete-all-document-versions-using-powershell.html