This script will disable all list and libraries from search result in the site collection. Add-PSSnapin Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue $site = Get-SPSite http://spapplication $site | Get-SPWeb -Limit ALL | ForEach-Object { foreach ($list in $_.lists) { $list.NoCrawl = $true $list.Update() } } $site.Dispose() You can disable it from list/library’s advanced settings. If numerous lists then…