A simple, lightweight Windows 11 optimisation & hardening tool. One script. No fluff.
BirdyOS is a single PowerShell script that significantly cleans up, hardens and speeds up a stock Windows 11 installation — all through an easy-to-read console menu.
No custom ISO. No third-party tools. No installers. Just one .ps1 file you can open in Notepad and understand.
Download & run the script automatically via PowerShell.
- Open PowerShell or Terminal, as administrator.
- Copy and paste the command below into PowerShell:
Set-ExecutionPolicy Bypass -Scope Process -Force
iex (irm "https://raw.githubusercontent.com/Solarauser123/BirdyOS/main/BirdyOS.ps1")Modern Windows 11 comes with heavy telemetry, AI features, forced updates, visual effects, bloat apps, reserved storage, advertising IDs, Copilot, Widgets, Recall previews, cloud integrations and more — most users never asked for any of it.
BirdyOS lets you disable almost all of that in one place, while keeping the OS fully usable.
- Privacy — telemetry (full), CEIP, error reporting, advertising ID, activity history, voice activation, Wi-Fi Sense, Recall, clipboard cloud sync…
- Security & hardening — VBS/HVCI, BitLocker auto-encryption, SmartScreen, Defender reporting, anonymous SAM/enumeration, null sessions, LLMNR, remote desktop/assistance…
- Performance — animations, Superfetch/SysMain, search indexing, memory compression, background apps, NTFS tweaks, core parking, power plan, sleep study…
- Debloat — removes huge list of preinstalled apps + optional OneDrive + Edge (with confirmation)
- Taskbar & UI — classic context menu, left-aligned taskbar, hide Widgets/Task View, disable Snap layouts, Copilot, MeetNow, News/Interests, Chat icon…
- Windows Update — block feature updates, auto-reboot, driver updates, Delivery Optimization, Insider, DevHome/Outlook forced reinstall…
- QoL — show file extensions, verbose boot, disable mouse acceleration, spellcheck, sound ducking, dynamic lighting, spotlight, OOBE privacy nags…
- Gaming — disable Game Bar/Xbox overlays, enable hardware-accelerated GPU scheduling, ultimate performance plan tweaks…
- Network — disable unneeded bindings, SMB throttling, NIC interrupt moderation…
Everything is optional — pick & choose or Run Everything (creates restore point first).
100% open source
No binaries, no encoded payloads, no external downloads.
You can read every registry key, service name, scheduled task and hosts entry the script touches.
BirdyOS only changes settings and removes provisioned packages on an already legitimately licensed Windows 11 installation.
It does not modify activation, bypass license checks, redistribute Windows files or create modified install media.
Fully compliant with Microsoft terms.
- Recommend Windows 11 23H2 (build 22631) or newer
(some tweaks may partially work on 22H2, but many AI/Recall-related keys are ignored) - Administrator rights (script auto-elevates)