diff --git a/CreateAndAttachToExistingVM.ps1 b/CreateAndAttachToExistingVM.ps1
new file mode 100644
index 0000000..8b9db9b
--- /dev/null
+++ b/CreateAndAttachToExistingVM.ps1
@@ -0,0 +1,49 @@
+<#
+
+.DESCRIPTION
+
+This script creates and attaches managed disks to existing virtual machines in the format of (vmname-$number) such as windowsvm01-0 for LUN 1
+
+Please note that your VM size dictates how many disks can be attached -- Update-AzureRmVM will error if you attempt to attach too many disks to a VM
+
+#>
+
+#Provide the subscription Id
+$subscriptionId = 'yourSubscriptionId'
+
+#Provide the name of your resource group
+$rgName = 'resourceGroupName'
+
+#Provide the name of your virtual machine
+$vmName = 'yourVMname'
+
+#Provide the location of this VM and resource group
+$location = 'East US'
+
+#Provide the storage type, Options are: (PremiumLRS, StandardLRS)
+$storageType = 'PremiumLRS'
+
+# How many disks do you want?:
+$diskNum = 6
+
+# How large do you want these disks to be? (max 1023GB)
+$diskSize = 1023
+
+# Which caching type do you want, Options are: (None, ReadOnly, ReadWrite)
+$diskCache = "ReadWrite"
+
+Select-AzureRmSubscription -SubscriptionId $subscriptionId
+
+# Do the work
+For ($i=0; $i -lt $diskNum; $i++) {
+
+$lunNum = $i + 1
+$dataDiskName = $vmName + '-' + $i
+
+$diskConfig = New-AzureRmDiskConfig -AccountType $storageType -Location $location -CreateOption Empty -DiskSizeGB $diskSize
+$dataDisk1 = New-AzureRmDisk -DiskName $dataDiskName -Disk $diskConfig -ResourceGroupName $rgName
+$vm = Get-AzureRmVM -Name $vmName -ResourceGroupName $rgName 
+$vm = Add-AzureRmVMDataDisk -VM $vm -Name $dataDiskName -CreateOption Attach -ManagedDiskId $dataDisk1.Id -Lun $lunNum -Caching $diskCache
+Update-AzureRmVM -VM $vm -ResourceGroupName $rgName
+
+}