Formatting a disk using PowerShell without prompting for confirmation

Question

I have added data disks to Azure virtual machines and I need to create a volume for them.

I have used the following code to create the volume:

$disk = Get-Disk | where-object PartitionStyle -eq "RAW"  
$disk | Initialize-Disk -PartitionStyle GPT  
$partition = $disk | New-Partition -UseMaximumSize -DriveLetter F  
$partition | Format-Volume -Confirm:$false -Force  

While creating the volume, it asks for confirmation before formatting the disk.

I want to avoid this confirmation box. I tried -Confirm:$false -Force but it still prompts for confirmation.

Answer 1

This fixed my problem. Confirmation popup does not appears while using the following code.

$disk = Get-Disk | where-object PartitionStyle -eq "RAW"  
Initialize-Disk -Number $disk.Number -PartitionStyle MBR -confirm:$false  
New-Partition -DiskNumber $disk.Number -UseMaximumSize -IsActive | Format-Volume -FileSystem NTFS -NewFileSystemLabel "Local Disk" -confirm:$False  
Set-Partition -DiskNumber $disk.Number -PartitionNumber 1 -NewDriveLetter F  

Answer 2

It appears this may be a bug with how Format-Volume handles -Confirm as discussed here: https://windowsserver.uservoice.com/forums/301869-powershell/suggestions/11088429-format-volume-force-parameter-does-not-work

The workaround suggested is to set $confirmpreference = 'none' before you start.

You might also want to grab the current $confirmpreference in to a variable first and then put it back to what it was afterwards. E.g:

$disk = Get-Disk | where-object PartitionStyle -eq "RAW"  
$disk | Initialize-Disk -PartitionStyle GPT  
$partition = $disk | New-Partition -UseMaximumSize -DriveLetter F  

$currentconfirm = $confirmpreference
$confirmpreference = 'none'
$partition | Format-Volume -Force  
$confirmpreference = $currentconfirm