Enrolling to Azure "Device already enrolled" error

Error message that a computer is already enrolled into Intune/azure even though it's not. 

Run this powershell script as admin.  (copy and paste it into an admin powershell window)

##This script checks for devices registered to AzureAD and removes them so you can successfully perform an AzureAD join. # We recommend you backup your registry prior to running. We take no responisbility for the use of this script. 

 $sids = Get-ChildItem 'HKLM:\SOFTWARE\Microsoft\EnterpriseResourceManager\Tracked' -name |where-object {$_.Length -gt 25} 

Foreach ($sid in $sids){ 
Write-host "Found a registered device. Would you like to remove the device registration settings for SID: $($sid)?" -ForegroundColor Yellow     $Readhost = Read-Host " ( y / n ) "     Switch ($ReadHost)      {        Y {Write-host "Yes, Remove registered device"; $removedevice=$true}        N {Write-Host "No, do not remove device registration"; $removedevice=$false}        Default {Write-Host "Default, Do not remove device registration"; $removedevice=$false}      }  
if ($removedevice -eq $true) { 
$enrollmentpath = "HKLM:\SOFTWARE\Microsoft\Enrollments\$($sid)" $entresourcepath = "HKLM:\SOFTWARE\Microsoft\EnterpriseResourceManager\Tracked\$($sid)" 

##Remove device from enrollments in registry 
$value1 = Test-Path $enrollmentpath If ($value1 -eq $true) { 
write-host "$($sid) exists and will be removed" 
Remove-Item -Path $enrollmentpath -Recurse -confirm:$false Remove-Item -Path $entresourcepath -Recurse -confirm:$false 

} Else {Write-Host "The value does not exist, skipping"} 

 ##Cleanup scheduled tasks related to device enrollment and the folder for this SID 

Get-ScheduledTask -TaskPath "\Microsoft\Windows\EnterpriseMgmt\$($sid)\*"| Unregister-ScheduledTask -Confirm:$false 

$scheduleObject = New-Object -ComObject Schedule.Service $scheduleObject.connect() $rootFolder = $scheduleObject.GetFolder("\Microsoft\Windows\EnterpriseMgmt") $rootFolder.DeleteFolder($sid,$null) 
Write-Host "Device registration cleaned up for $($sid). If there is more than 1 device registration, we will continue to the next one." pause 

} else { Write-host "Removal has been cancelled for $($sid)"} 

} 

write-host "Cleanup of device registration has been completed. Ensure you delete the device registration in AzureAD and you can now join your device."