How to delete AppLocker rules with powrshell?

Question

I need to remove AppLocker rules filtered by name. First of all i want to understand how i can delete rules.

I can get current AppLocker rules and i can see, that RuleCollections has method "Delete"

$local:Policy = Get-AppLockerPolicy -Local
$Policy.RuleCollections | gm

I can delete rules from categories where only one rule

$Policy.RuleCollections | Where {$_.Count -eq 1} | foreach {$_.Delete($_.Id)}

How can i delete rules from categories where more than one rule?

Answer 1

As per my comment.

# Remove all applocker policies for the specified rule type.
Get-AppLockerPolicy -Effective | 
Remove-AppLockerPolicy -RuleType Executable

Answer 2

$LocalAppLockerPolicy = Get-AppLockerPolicy -Local
$RuleCollection = $LocalAppLockerPolicy.GetRuleCollection('exe')
$AppLockerRule = $RuleCollection | ? {$_.PathConditions.Path.Path -eq $PathName}
$RuleCollection.Delete($AppLockerRule.Id)
Set-AppLockerPolicy -PolicyObject $LocalAppLockerPolicy