To create a scheduled runbook to increase the processor performance of VM1 at the end of each month, you need to modify the VM size property of VM1. This will allow you to scale up the VM to a larger size that has more CPU cores and memory. You can use Azure Automation to create a PowerShell runbook that changes the VM size using the Set-AzVM cmdlet. You can then schedule the runbook to run at the end of each month using the Azure portal or Azure PowerShell. For more information, see How to resize a virtual machine in Azure using Azure Automation1.