There may be quite a few services whose name begins with the letter "a"! I don't think I'd use that as a criterion.
I'd start by running this:
Get-Service "azure*" |
ForEach-Object{
Stop-Service $_ -WhatIf:$true
Get-CimInstance -ClassName Win32_Service -Filter "Name='$_'" |
Remove-CimInstance -WhatIf:$true
}
Check the output carefully to be sure that you haven't inadvertently included some necessary service. When you're sure the results aren't going to disrupt your operation, remove the "-WhatIf:$true" switches from the Stop-Service and Remove-CimInstance cmdlets.