Creating a custom Windows 11 25H2 ISO with your favorite software pre-installed is one of the biggest time-savers for power users, IT pros, and anyone who reinstalls Windows regularly.
By the end of this guide, you’ll have a Windows 11 25H2 custom ISO that’s clean and bloat-free—and it will install your go-to apps automatically (Chrome, Office, VLC, 7-Zip, etc.) during setup with no manual clicking.
We’ll use NTLite (a top choice in 2025) because it’s reliable, actively maintained, and works well for building a custom Windows 11 25H2 ISO with pre-installed software.
Legal note: Only integrate software you have legitimate licenses for.
To create your custom Windows 11 25H2 ISO, gather:
- A legitimate Windows 11 25H2 ISO (Microsoft Media Creation Tool or Rufus → “Download Windows”)
- NTLite (Free works for many tasks; Pro is best for app/silent integration)
- Your apps in .exe or .msi format + their silent install switches
- ~30–60 minutes
Step 1: Load the Windows 11 25H2 ISO in NTLite
- Download NTLite from the official site (ntlite.com) and install it.
- Launch NTLite.
- Click Add → Image directory or ISO file, then select your Windows 11 25H2 ISO.
- Choose the edition you want (Windows 11 Pro is common) → Load.
This prepares the image so you can customize it into a custom Windows 11 25H2 ISO.
Step 2: Debloat and optimize your custom Windows 11 25H2 ISO
To keep your custom Windows 11 25H2 ISO clean, go through the removal/optimization sections carefully.
Components tab (popular removals in 2025):
- OneDrive (full removal)
- Cortana / Copilot (25H2 still integrates this—remove carefully)
- Microsoft Edge (only if you truly don’t want it)
- Telemetry & diagnostics
- Windows Hello Face/Fingerprint (if unused)
- Clipchamp, News, Weather, Xbox apps
Features / tweaks (common choices):
- Disable Windows Recall (privacy)
- Reduce ads/suggestions in Start Menu & Lock Screen
Tip: Use the “Compatibility” warnings on the right—avoid removing anything marked critical. A stable Windows 11 25H2 custom ISO matters more than saving a few MB.
To resolve Disk space full issue in Windows
Check it here
Step 3: Integrate updates and drivers into the Windows 11 25H2 custom ISO
Keeping your custom Windows 11 25H2 ISO updated reduces post-install patching and reboots.
- Updates tab → Add → Microsoft Update Catalog or drag in downloaded .msu/.cab files
- Integrate the latest:
- 25H2 cumulative update
- latest servicing stack
- .NET updates (as applicable)
Drivers: Add GPU, Wi‑Fi, chipset, or laptop-specific drivers if needed so your Windows 11 25H2 ISO boots with everything working.
Step 4: Add pre-installed software to your custom Windows 11 25H2 ISO (Post-Setup)
This is the key step for a custom Windows 11 25H2 ISO with pre-installed software.
- Go to Post-Setup (left sidebar).
- Click Add → Executable.
- Add each app installer in the order you want them installed.
Popular silent install switches (examples)
| Software | Silent switch | Notes |
|---|---|---|
| Google Chrome | GoogleChromeStandaloneEnterprise64.msi /qn | MSI is the cleanest option |
| Firefox | Firefox Installer.exe -ms | |
| 7-Zip | 7z2407-x64.exe /S | |
| VLC | vlc-3.0.21-win64.exe /S | |
| LibreOffice | LibreOffice_24.8.3_Win_x64.msi /qn | |
| Microsoft Office 2024/365 (legal) | Office Deployment Tool + config XML | Use Microsoft docs |
| Visual Studio Code | VSCodeUserSetup-x64.exe /VERYSILENT /MERGETASKS=!runcode | |
| Notepad++ | npp.8.7.Installer.x64.exe /S | |
| Discord | DiscordSetup.exe -s | |
| Steam | SteamSetup.exe /S |
Pro tip: Put all installers in one folder. NTLite runs Post-Setup after first boot as SYSTEM, so your Windows 11 25H2 custom ISO with apps can be fully hands-free.
Step 5: Configure unattended setup for the Windows 11 25H2 custom ISO
If you want your custom Windows 11 25H2 ISO to install with minimal prompts:
- Open Unattended → enable unattended
- Configure:
- Accept EULA
- Partition behavior (auto or manual)
- Local account creation (or skip if you’re automating activation)
- Skip OOBE screens + privacy prompts
- Preset region/keyboard
This turns your custom Windows 11 25H2 ISO into a near “zero-click” installer.
Step 6: Build the final custom Windows 11 25H2 ISO
To export your finished custom Windows 11 25H2 ISO:
- Click Apply (top toolbar).
- Check:
- Create ISO
- Integrate updates
- Process image
- Click Process and wait (often 15–45 minutes depending on updates/apps).
When it finishes, you’ll have a custom Windows 11 25H2 ISO with pre-installed software that:
- installs fast
- includes your apps automatically
- has less bloat
- needs minimal post-install setup
Bonus: Faster workflow for custom Windows 11 25H2 ISO builds (advanced)
If you rebuild often, NTLite Pro Presets let you save your full configuration. Then, when Microsoft releases a new Windows 11 25H2 build, you can load the preset and generate a fresh Windows 11 25H2 custom ISO in minutes.
Final thoughts
In 2026, building a custom Windows 11 25H2 ISO is easier and more powerful than ever—especially if your goal is a Windows 11 25H2 ISO with pre-installed software and a cleaner default setup.