Set-NTPServerUp.ps1

$Logo = @"
╔═══╗░░╔╗░░░░░░░░░░░░╔═══╗░░░░░
║╔═╗║░░║║░░░░░░░░░░░░║╔═╗║░░░░░
║║░║╠══╣╚═╦══╦═╦═╗╔══╣╚═╝╠═╦══╗
║║░║║══╣╔╗║╔╗║╔╣╔╗╣║═╣╔══╣╔╣╔╗║
║╚═╝╠══║╚╝║╚╝║║║║║║║═╣║░░║║║╚╝║
╚═══╩══╩══╩══╩╝╚╝╚╩══╩╝░░╚╝╚══╝
===============================
If you can't beat `em tech `em!
===============================
https://osbornepro.com
EMAIL: info@osbornepro.com
"@
Write-Output "$Logo"

$NTPReg = "HKLM:\SYSTEM\CurrentControlSet\Services\W32Time"

Write-Output "[*] Enabling UDP port 123 on firewall for NTP connections"
New-NetFirewallRule -DisplayName "Allow NTP" -Profile @('Domain','Private','Public') -Direction Inbound -Action Allow -Protocol UDP -LocalPort 123 -Description "Allow UPD port 123 traffic for NTP connections"

Write-Output "[*] Enabling NTP Server"
Set-ItemProperty -Path "$NTPReg\TimeProviders\NTPServer" -Name "Enabled" -Value 1 -Force -ErrorAction SilentlyContinue

Write-Output "[*] Enabling NTP announcements"
Set-ItemProperty -Path "$NTPReg\Config" -Name "AnnounceFlags" -Value 5 -Force -ErrorAction SilentlyContinue

Restart-Service -Name W32Time -Force