Sharepoint Online - Site Data Collection change - sharepoint

Question

I am currently trying to disable a OneDrive for my organisation. It works pretty well for new users, but old ones got access. I worked out one solution - when I take away collection admin rights user cannot use OneDrive anymore.
But I have 1000 users, and I will die changing permissions by hand, therefore is there any script to set all site collection admins to one person?
I mean those settings:
https://i.stack.imgur.com/A63RZ.png

Answer 1

If you want to disable OneDrive and don't want anyone to access it, instead of changing permissions, you can lock all OneDrive sites via PowerShell code:
Import-Module Microsoft.Online.SharePoint.PowerShell -DisableNameChecking
#Parameters
$AdminCenterURL = "https://xxx-admin.sharepoint.com"
Try {
#Connect to SharePoint Online Admin Center
Connect-SPOService -Url $AdminCenterURL -Credential (Get-Credential)
#Get All OneDrive for Business Sites in the Tenant
$OneDriveSites = Get-SPOSite -Limit ALL -includepersonalsite $True -Filter "Url -like '-my.sharepoint.com/personal/'"
#Loop through each OneDrive Site
Foreach($Site in $OneDriveSites)
{
Set-SPOSite -Identity $Site -LockState "NoAccess"
Write-host "Scanning site:"$Site.Url "is locked"-f Yellow
}
}
Catch {
write-host -f Red "Error locking Sites:" $_.Exception.Message
}
Result is:
After that, when users try to access OneDrive, a 403 error will be returned.
About Set-SPOSite