1. Information
- Name: OblivionOS – [2in1] – Windows 11 Home & Pro
- Base version: Windows 11 v25H2, Build 26200.6584
- Architecture: x64
- Default language: English (other languages can be added later)
- ISO size: ~5–5.6 GB
- “2in1” feature: Includes both Home and Pro editions in one package with the same tweaks applied
- Updatable: Advertised as Fully Updateable Build
- Bypasses: TPM, Secure Boot, and Microsoft Account requirements are bypassed
- Microsoft Store: Kept and functional
- Installation: Out-of-box setup, minimal user interaction
2. New Features in Windows 11 v25H2 / Build 26200.6584 (Base)
Before analyzing the modifications, here’s what’s new in the official Windows 11 v25H2 Build 26200.6584 by Microsoft, to differentiate between native and custom features.
- Build 26200.6584 is the RTM / GA (finalized release) of Windows 11 v25H2
- 25H2 is an enablement update, meaning it’s built upon the same core as 24H2 — most changes are activated features rather than deep system rewrites.
Highlighted new or improved features include:
- Braille Viewer for Narrator (improved accessibility)
- Click-to-Do improvements and a new Convert to Table option
- Plugin credential managers for Passkeys support
- Enhanced mobile device linking & sync experience
- Admin tools for removing preinstalled Store apps
- Quick Machine Recovery to reduce downtime after crashes
Since it’s an enablement update, most of the improvements focus on stability, reliability, and IT management, not major interface changes.
Microsoft provides the official ISO for this build directly on their servers.
3. OblivionOS Modifications: Added, Removed, and Tweaked Components
OblivionOS modifies the system to make it lighter, faster, and more private, mainly by removing unnecessary services and apps while keeping core functionality.
3.1 Removed or Disabled Components
The following components are removed or disabled, as listed on the mod’s page:
- All Windows Bloatware Apps
- ActiveX Installer Service
- Agent Activation Runtime
- Assigned Access Lock App / Assigned Access
- AutoPlay
- BranchCache Client
- Cache and Temp Files
- CEIP (SQM)
- Clipboard User Service
- Cloud Notifications
- Content Delivery Manager
- Device Experience
- Device Lockdown
- Device Update Center
- Embedded Mode
- Enterprise Data Protection (EDP/WIP)
- Feedback Hub
- File Revocation Manager (32-bit)
- File Server Resource Manager
- Folder Redirection
- Get Help
- CHM Help Support
- Internet Explorer (both 32-bit and full)
- IIS (Internet Information Services)
- Kernel Debugging
- Location Service
- Messaging Service
- Microsoft Bing
- Microsoft Edge & Edge Updater
- Microsoft Message Queue (MSMQ)
- Microsoft News
- Microsoft Privacy Engine
- Microsoft Sync Framework
- MSN Weather
- MultiPoint Connector
- Natural Authentication
- Natural Language (Legacy)
- NDIS Packet Capture (NDISCAP)
- NTVDM (16-bit subsystem)
- OneDrive
- Proximity / Wi-Fi Direct
- Recommended Troubleshooting
- Reliability Analysis Services
- Remote Assistance / Remote Registry / RPC Locator
- Retail Demo Content
- Rights Management
- Shared PC Mode
- Simple TCP/IP Services
- Sleep Study
- Steps Recorder
- Telemetry Client
- Wallet Service
- Windows Copilot & Feature Experience Pack
- Windows Error Reporting
- Windows Help Content
- Windows LAPS (Local Administrator Password Solution)
- Windows Media Player
- Windows Push Notification Service
- Windows Search
- WMP Network Sharing Service
- Work Folders Client
Key notes:
- Removing Edge and OneDrive deeply impacts integration with Microsoft’s ecosystem.
- Disabling Windows Search may slow down or break search functions.
- Removing diagnostic and feedback tools reduces background data collection but also removes repair functionality.
- Cutting old features like IE, IIS, or NTVDM makes sense for modern systems, but legacy apps may fail.
3.2 Added or Retained Components
OblivionOS keeps or adds the following:
- Firefox (included by default)
- StartAllBack (custom Start Menu / taskbar enhancer)
- Custom themes and wallpapers
- Microsoft Store (kept functional)
- Update system (Windows Update kept but paused by default)
Essential system functions like device management, Defender core components, and basic update tools remain intact for stability.
4. Feature Comparison: Official vs. OblivionOS
| Feature | Official Windows 11 25H2 | OblivionOS | Impact |
|---|---|---|---|
| Microsoft Edge | Included (default browser) | Removed | Must use another browser (Firefox preinstalled) |
| OneDrive | Integrated cloud sync | Removed | No automatic cloud backup |
| Windows Search | Fully functional | Removed | Slower or disabled search |
| Telemetry / Feedback | Active by default | Disabled | More privacy, less diagnostic data |
| Microsoft Store / UWP | Included | Store kept, UWP apps trimmed | Fewer preinstalled apps |
| Remote Assistance / Registry Tools | Available | Removed | Harder to repair remotely |
| IIS, NTVDM, MSMQ | Optional | Removed | No legacy or server functions |
| Start Menu | Default Windows 11 | StartAllBack | Custom classic-style Start |
| Updates | Enabled | Paused by default | Must manually enable for security |
5. ScreenShot
