Fastest way to remove all users from an Azure AD group with PowerShell

Question

What is the fastest way to remove all users from an Azure AD group in PowerShell? I am currently using

$deleteThem = Get-MsolGroupMember -GroupObjectId $groupId -All 
foreach ($user in $deleteThem) {
    Remove-MsolGroupMember -GroupObjectId $groupId -GroupMemberObjectId $user.ObjectId
}

but this is painfully slow. I need to retain the group and group id though. Any ideas?

Answer 1

As mentioned by Ash in comments section , Using Remove-AzADGroupMember is faster than Remove-MsolGroupMember.

I ran the below script for deleting users in a group by just providing the Group name.

Import-Module AzureAD
$Credential = Get-Credential
Connect-AzureAD -Credential $Credential
$group=Get-AzureADGroup -SearchString 'Your Tenant Group Name' 
$users=Get-AzureADGroupMember -ObjectId $Group.ObjectId -All $true |where {$_.ObjectType -eq 'User'}
foreach($user in $users){
Remove-AzureADGroupMember -ObjectId $Group.ObjectId -MemberId $user.objectId
} 

Note : In credentials prompt box, provide the admin id of the tenant and password. If there are lot of users in the group then it is expected to take some time.