Removing fault features from a content database in SharePoint 2013 using PowerShell


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function Remove-SPFeatureFromContentDB($ContentDb, $FeatureId, [switch]$ReportOnly)
{
$db = Get-SPDatabase | where { $_.Name -eq $ContentDb }
[bool]$report = $false
if ($ReportOnly) { $report = $true }

$db.Sites | ForEach-Object {

Remove-SPFeature -obj $_ -objName “site collection” -featId $FeatureId -report $report

$_ | Get-SPWeb -Limit all | ForEach-Object {

Remove-SPFeature -obj $_ -objName “site” -featId $FeatureId -report $report
}
}
}

function Remove-SPFeature($obj, $objName, $featId, [bool]$report)
{
$feature = $obj.Features[$featId]

if ($feature -ne $null) {
if ($report) {
write-host “Feature found in” $objName “:” $obj.Url -foregroundcolor Red
}
else
{
try {
$obj.Features.Remove($feature.DefinitionId, $true)
write-host “Feature successfully removed from” $objName “:” $obj.Url -foregroundcolor Red
}
catch {
write-host “There has been an error trying to remove the feature:” $_
}
}
}
else {
write-host “Feature ID specified does not exist in” $objName “:” $obj.Url
}
}

Sample:

Remove-SPFeatureFromContentDB -ContentDB “WSS_Content_xxx” -FeatureId “Guid” –ReportOnly  just report if the feature exists or no
Remove-SPFeatureFromContentDB -ContentDB “WSS_Content_xxx” -FeatureId “Guid”  // delete the feature from the content database

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