To create a Hyper-V snapshot using PowerShell and schedule the script to run at specific intervals, you can use the New-VMSnapshot cmdlet along with Windows Task Scheduler. Here’s a PowerShell script that creates a snapshot of a Hyper-V virtual machine and schedules it to run at a specified interval:

Step 1: Create the PowerShell script to take the snapshot Create a new PowerShell script file (e.g., Create-HyperVSnapshot.ps1) and add the following content:

param (
    [string]$VMName,
    [string]$SnapshotName,
    [string]$SnapshotDescription
)

# Check if Hyper-V module is available
if (-not (Get-Module -ListAvailable Hyper-V)) {
    Write-Output "Hyper-V module not found. Ensure that the Hyper-V feature is installed."
    exit
}

# Create a snapshot of the virtual machine
New-VMSnapshot -VMName $VMName -Name $SnapshotName -Description $SnapshotDescription -Confirm:$false

Step 2: Schedule the script using Windows Task Scheduler

1. Open Windows Task Scheduler (taskschd.msc).
2. In the Actions pane on the right side, click on “Create Basic Task.”
3. Follow the wizard to create a basic task with the following details:
   • Name: Provide a name for the task (e.g., “HyperVSnapshotTask”).
   • Trigger: Select “Daily” or “Weekly,” depending on your preferred interval. Set the start time for the first run and the repeat frequency.
   • Action: Choose “Start a program.”
   • Program/script: Browse and select the PowerShell executable (powershell.exe).
   • Add arguments: Enter the path to your script file and the required parameters. For example:

-ExecutionPolicy Bypass -File "C:\Path\To\Create-HyperVSnapshot.ps1" -VMName "Your_VM_Name" -SnapshotName "SnapshotName" -SnapshotDescription "SnapshotDescription"

• Start in: Set the working directory (if needed). This should be the folder where your script is located.

Instructions:

1. Replace "Your_VM_Name" with the name of the Hyper-V virtual machine you want to create a snapshot for.
2. Provide a "SnapshotName" and "SnapshotDescription" for the snapshot in the script or specify them as arguments when running the script.

The scheduled task will now run the PowerShell script at the specified interval and create snapshots of the specified Hyper-V virtual machine with the provided snapshot name and description.

Please exercise caution when using snapshots and ensure that you have a proper backup strategy in place to protect your virtual machines and data.