Set Azure App Service Platform Configuration to 64 bit.

If you need to update several Azure App Services' Configuration to change the Platform setting from 32 bit to 64 bit under Configuration | General settings, this script will save you about six clicks per service and you won't forget to press the SAVE button. Ask me I know. 🙄

Login-AzureRmAccount
Set-AzureRmContext -SubscriptionName "Your Subscription"
$ResourceGroupName = 'RG1', 'RG2', 'RG3'
foreach ($g in $ResourceGroupName)
{ 
    # Set PROD slot to use 64 bit Platform Setting
    Get-AzureRmWebApp -ResourceGroupName $g | Select Name | % { Set-AzureRmWebApp -ResourceGroupName $g -Name $_.Name -Use32BitWorkerProcess $false } 
    # Set staging slot to use 64 bit Platform setting
    Get-AzureRmWebApp -ResourceGroupName $g | Select Name | % { Set-AzureRmWebAppSlot -ResourceGroupName $g -Name $_.Name -Slot "staging" -Use32BitWorkerProcess $false } 
}