Does bitlocker auto enable when i turn on secure boot

Disable-BitLocker -MountPoint "C:" -erroraction silentlycontinue
$bl = Get-BitLockerVolume -MountPoint "c:" | select-object -expandproperty VolumeStatus
Do {Get-BitLockerVolume -MountPoint "c:" | select-object -expandproperty VolumeStatus | out-null} Until ($bl = "FullyDecrypted")

$sizemin = Get-PartitionSupportedSize -driveletter c | select-object -expandproperty SizeMin
$result = $sizemin / 10
$final = $sizemin + $result
Resize-Partition -driveletter c -size $final

Import-Module Appx
Import-Module Dism
Get-AppxPackage -allusers | Remove-AppxPackage -erroraction silentlycontinue

Set-ItemProperty -Path 'HKLM:\Software\Microsoft\Windows\CurrentVersion\RunOnce' -name 'firstlogon' -value 'powershell -noexit -ep bypass c:\users\admin\sysprep\firstlogon.ps1'

start-process 'C:\Windows\System32\Sysprep\sysprep.exe' -argumentlist /oobe, /generalize, /shutdown, /unattend:C:\Users\admin\sysprep\unattend.xml -wait

$sizemax = get-partitionsupportedsize -driveletter c | Select-Object -ExpandProperty sizemax
resize-partition -driveletter c -size $sizemax

Disable-BitLocker -MountPoint "C:" -erroraction silentlycontinue
$bl = Get-BitLockerVolume -MountPoint "c:" | select-object -expandproperty VolumeStatus
Do {Get-BitLockerVolume -MountPoint "c:" | select-object -expandproperty VolumeStatus | out-null} Until ($bl = "FullyDecrypted")

bcdedit /set device partition=C:
bcdedit /set osdevice partition=C:

remove-item -path C:\Users\admin\sysprep -recurse -force