vmix.nix/lib/images/windows/templates/generalize.nix
Git Sagar dd5aeafae9 restore Enterprise LTSC key after MAS activation to keep RDP server
MAS HWID activation switches the edition from Enterprise LTSC to IoT
Enterprise LTSC (which lacks the RDP server listener). Re-apply the
Enterprise LTSC product key after activation to restore RDP capability.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-06-08 12:11:51 +05:30

219 lines
10 KiB
Nix

# Generalize image via sysprep + OOBE in two phases.
# Phase 1 (sysprep): runs sysprep /generalize /oobe /shutdown in Audit Mode
# Phase 2 (oobe): boots through OOBE, creates user, activates Windows, shuts down
# Between phases, NTUSER.DAT can be modified offline.
# Usage: (templates.generalize { username = "User"; password = ""; })
{ pkgs, lib, makeFilesISO, ... }:
let
masScript = pkgs.fetchurl {
url = "https://raw.githubusercontent.com/massgravel/Microsoft-Activation-Scripts/97602941e5724316aa31b6ca1da5c70245d234d5/MAS/All-In-One-Version-KL/MAS_AIO.cmd";
hash = "sha256-1hl89jQf2p+RtE3ue/+cZevSoz7Ra3p3u350aE/Xy74=";
};
in
{
username ? "User",
password ? "",
autoLogon ? true,
hostname ? "WIN-VM",
locale ? "en-US",
timezone ? "UTC",
# Desktop background solid color as hex string (e.g. "8e8cd8")
bgColor ? null,
# Enable Remote Desktop for the created user (re-applied after sysprep)
enableRDP ? false,
# delayOobeRun = true: sysprep only, OOBE + activation on real hardware
# delayOobeRun = false: sysprep + OOBE + activation in build VM
delayOobeRun ? false,
}: let
# Convert "8e8cd8" hex to "142 140 216" decimal RGB for Windows registry
hexToRgbStr = hex: let
hexChars = lib.stringToCharacters hex;
hexToDec = h: let
c = lib.toLower h;
m = { "0"=0; "1"=1; "2"=2; "3"=3; "4"=4; "5"=5; "6"=6; "7"=7; "8"=8; "9"=9; "a"=10; "b"=11; "c"=12; "d"=13; "e"=14; "f"=15; };
in m.${c};
r = hexToDec (builtins.elemAt hexChars 0) * 16 + hexToDec (builtins.elemAt hexChars 1);
g = hexToDec (builtins.elemAt hexChars 2) * 16 + hexToDec (builtins.elemAt hexChars 3);
b = hexToDec (builtins.elemAt hexChars 4) * 16 + hexToDec (builtins.elemAt hexChars 5);
in "${toString r} ${toString g} ${toString b}";
stripHash = s: lib.removePrefix "#" s;
bgRgb = if bgColor != null then hexToRgbStr (stripHash bgColor) else null;
# Post-OOBE script: runs as the created user via FirstLogonCommands.
postOobeScript = pkgs.writeText "post-oobe.cmd" ''
@echo off
${lib.optionalString (!autoLogon) ''
reg delete "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v AutoAdminLogon /f 2>nul
reg delete "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v DefaultUserName /f 2>nul
reg delete "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v DefaultPassword /f 2>nul
''}
${lib.optionalString (bgColor != null) ''
:: Set solid background color
reg add "HKCU\Control Panel\Desktop" /v WallPaper /t REG_SZ /d "" /f
reg add "HKCU\Control Panel\Colors" /v Background /t REG_SZ /d "${bgRgb}" /f
reg add "HKCU\Control Panel\Desktop" /v WallpaperStyle /t REG_SZ /d "0" /f
''}
${lib.optionalString (password != "") ''
:: Set user password (OOBE creates with blank password for reliable AutoLogon)
net user "${username}" "${password}"
''}
:: Set AutoLogon via registry (OOBE unattend AutoLogon is unreliable)
${lib.optionalString autoLogon ''
reg add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v AutoAdminLogon /t REG_SZ /d "1" /f
reg add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v DefaultUserName /t REG_SZ /d "${username}" /f
reg add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v DefaultPassword /t REG_SZ /d "${password}" /f
''}
:: Kill sysprep if it was triggered via CopyProfile'd startup entries
taskkill /f /im sysprep.exe 2>nul
:: Clean any leftover RunOnce/Run entries from audit phase
reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce" /v "vmixAudit" /f 2>nul
reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "vmixAudit" /f 2>nul
:: Remove Edge AppxPackage for current user (runs in user context during OOBE)
:: The app is already removed on one of the templates but a ghost appx entry remains that can only be deleted at the user level
powershell -Command "Get-AppxPackage *MicrosoftEdge* | Remove-AppxPackage -ErrorAction SilentlyContinue"
powershell -Command "Get-AppxPackage *MicrosoftEdgeDevToolsClient* | Remove-AppxPackage -ErrorAction SilentlyContinue"
:: Activate Windows using HWID method
if exist C:\MAS_AIO.cmd (
echo. | call C:\MAS_AIO.cmd /HWID
)
:: MAS may switch edition to IoT Enterprise (which lacks RDP server).
:: Restore Enterprise LTSC key to keep full RDP functionality.
cscript //nologo C:\Windows\System32\slmgr.vbs /ipk M7XTQ-FN8P6-TTKYV-9D4CC-J462D 2>nul
:: Activate Office using Ohook method (if Office is installed)
if exist "C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE" (
if exist C:\MAS_AIO.cmd (
echo. | call C:\MAS_AIO.cmd /Ohook
)
)
del /q C:\MAS_AIO.cmd 2>nul
${lib.optionalString enableRDP ''
:: Enable RDP
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server" /v fDenyTSConnections /t REG_DWORD /d 0 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /v UserAuthentication /t REG_DWORD /d 0 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Lsa" /v LimitBlankPasswordUse /t REG_DWORD /d 0 /f
:: Enable RDP firewall rules for all network profiles
powershell -Command "Enable-NetFirewallRule -DisplayGroup 'Remote Desktop'"
powershell -Command "Set-NetFirewallRule -DisplayGroup 'Remote Desktop' -Profile Any"
:: Set all RDP services to auto-start via registry (sc config can fail silently)
reg add "HKLM\SYSTEM\CurrentControlSet\Services\SessionEnv" /v Start /t REG_DWORD /d 2 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Services\UmRdpService" /v Start /t REG_DWORD /d 2 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Services\TermService" /v Start /t REG_DWORD /d 2 /f
net start SessionEnv
net start TermService
net start UmRdpService
''}
:: Clean up
del /q C:\oobe-unattend.xml 2>nul
del /q C:\vmix-audit-script.cmd 2>nul
del /q C:\vmix-audit-wrapper.cmd 2>nul
${if delayOobeRun then "" else "shutdown /s /t 5 /c \"vmix generalize complete\""}
del /q C:\post-oobe.cmd 2>nul
'';
oobeXml = pkgs.writeText "oobe-unattend.xml" ''
<?xml version="1.0" encoding="utf-8"?>
<unattend xmlns="urn:schemas-microsoft-com:unattend"
xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State">
<!-- Copy Administrator profile to default (preserves Audit Mode customizations) -->
<settings pass="specialize">
<component name="Microsoft-Windows-Shell-Setup" processorArchitecture="amd64"
publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS">
<CopyProfile>true</CopyProfile>
<Themes>
<WindowColor>Automatic</WindowColor>
</Themes>
</component>
</settings>
<settings pass="oobeSystem">
<component name="Microsoft-Windows-International-Core" processorArchitecture="amd64"
publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS">
<InputLocale>${locale}</InputLocale>
<SystemLocale>${locale}</SystemLocale>
<UILanguage>${locale}</UILanguage>
<UserLocale>${locale}</UserLocale>
</component>
<component name="Microsoft-Windows-Shell-Setup" processorArchitecture="amd64"
publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS">
<OOBE>
<HideEULAPage>true</HideEULAPage>
<HideLocalAccountScreen>true</HideLocalAccountScreen>
<HideOnlineAccountScreens>true</HideOnlineAccountScreens>
<HideWirelessSetupInOOBE>true</HideWirelessSetupInOOBE>
<NetworkLocation>Work</NetworkLocation>
<SkipMachineOOBE>true</SkipMachineOOBE>
<SkipUserOOBE>true</SkipUserOOBE>
<ProtectYourPC>3</ProtectYourPC>
</OOBE>
<UserAccounts>
<LocalAccounts>
<LocalAccount wcm:action="add">
<Password>
<Value></Value>
<PlainText>true</PlainText>
</Password>
<Group>Administrators</Group>
<Name>${username}</Name>
</LocalAccount>
</LocalAccounts>
</UserAccounts>
<AutoLogon>
<Password>
<Value></Value>
<PlainText>true</PlainText>
</Password>
<Enabled>true</Enabled>
<LogonCount>999</LogonCount>
<Username>${username}</Username>
</AutoLogon>
<ComputerName>${hostname}</ComputerName>
<TimeZone>${timezone}</TimeZone>
<FirstLogonCommands>
<SynchronousCommand wcm:action="add">
<Order>1</Order>
<CommandLine>C:\post-oobe.cmd</CommandLine>
<RequiresUserInput>false</RequiresUserInput>
</SynchronousCommand>
</FirstLogonCommands>
</component>
</settings>
</unattend>
'';
in {
name = if delayOobeRun then "generalize-delay-oobe" else "generalize";
uploads = [
{ source = oobeXml; dest = "/oobe-unattend.xml"; }
{ source = postOobeScript; dest = "/post-oobe.cmd"; }
{ source = masScript; dest = "/MAS_AIO.cmd"; }
];
# delayOobeRun: sysprep + shutdown — OOBE runs on real hardware
# generalize: sysprep + reboot into OOBE in the same QEMU session
auditScript = ''
@echo off
:: Remove cached Autounattend from initial install (contains Audit Mode reseal)
del /q C:\Windows\Panther\unattend.xml 2>nul
del /q C:\Windows\Panther\Unattend\unattend.xml 2>nul
del /q C:\Windows\System32\Sysprep\Panther\unattend.xml 2>nul
C:\Windows\System32\Sysprep\sysprep.exe /generalize /oobe ${if delayOobeRun then "/shutdown" else "/reboot"} /quiet /unattend:C:\oobe-unattend.xml
'';
}
# :: Enable RDP (sysprep resets offline registry changes)
# reg add "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server" /v fDenyTSConnections /t REG_DWORD /d 0 /f
# reg add "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /v UserAuthentication /t REG_DWORD /d 0 /f
# netsh advfirewall firewall add rule name="RDP" dir=in protocol=tcp localport=3389 action=allow
# :: Start and enable the RDP service
# sc config TermService start= auto
# net start TermService