winutil/functions/private/Set-WinUtilRestorePoint.ps1

function Set-WinUtilRestorePoint {
    <#

    .SYNOPSIS
        Creates a Restore Point

    #>

    # Check if the user has administrative privileges
    if (-Not ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) {
        Write-Host "Please run this script as an administrator."
        return
    }

    # Check if System Restore is enabled for the main drive
    try {
        # Try getting restore points to check if System Restore is enabled
        Enable-ComputerRestore -Drive "$env:SystemDrive"
    } catch {
        Write-Host "An error occurred while enabling System Restore: $_"
    }

    # Check if the SystemRestorePointCreationFrequency value exists
    $exists = Get-ItemProperty -path "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SystemRestore" -name "SystemRestorePointCreationFrequency" -ErrorAction SilentlyContinue
    if($null -eq $exists){
        write-host 'Changing system to allow multiple restore points per day'
        Set-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SystemRestore" -Name "SystemRestorePointCreationFrequency" -Value "0" -Type DWord -Force -ErrorAction Stop | Out-Null  
    }

    # Get all the restore points for the current day
    $existingRestorePoints = Get-ComputerRestorePoint | Where-Object { $_.CreationTime.Date -eq (Get-Date).Date }

    # Check if there is already a restore point created today
    if ($existingRestorePoints.Count -eq 0) {
        $description = "System Restore Point created by WinUtil"
        
        Checkpoint-Computer -Description $description -RestorePointType "MODIFY_SETTINGS"
        Write-Host -ForegroundColor Green "System Restore Point Created Successfully"
    }
}