Trying to back up my Bitlocker Key to ADDS Through Script

Question

I'm trying to automatize the process of storing BitLocker Keys to ADDS.

I wanna be able to run the following script at logon, in order to do that, as the OS is deployed through WDS which already encrypts the drive:

$BitVolume = Get-BitLockerVolume -MountPoint $env:SystemDrive

$RecoveryKey = $BitVolume.KeyProtector | Where-Object { $_.KeyProtectorType -eq 'RecoveryPassword' }

Backup-BitLockerKeyProtector -MountPoint $env:SystemDrive -KeyProtectorId $RecoveryKey.KeyProtectorID

BackupToAAD-BitLockerKeyProtector -MountPoint $env:SystemDrive -KeyProtectorId $RecoveryKey.KeyProtectorID

I always get access denied as this has to run as admin... Is there any command I can use prior the code to run it as admin? I've googled but I found no useful info to actually do this...