In testing — KilluaOS 0.5.10

The Gaming OS
for VALORANT.

A lighter, steadier Windows 11 built from the official Microsoft image, tuned for VALORANT — with Vanguard working and every change measured on real hardware.

Get KilluaOS See what's new
Windows PowerShell
PS C:\KilluaOS> killuaos --status

KilluaOS ............... 0.5.10
Base ................... Windows 11 26H2 · 26300
Vanguard ............... ready (VBS · TPM · Secure Boot)
Game Booster ........... automatic
Stall detector ......... watching
Last VALORANT session .. 248 fps · 5.2 ms latency
Updates ................ signed

› system ready for VALORANT
Why KilluaOS

Light where it matters. Safe where it counts.

Other lite builds get fast by switching off what anti-cheats need. KilluaOS removes the weight and keeps the protections, then measures the result.

Fewer processes

Lighter than stock

58 processes and 0.92 GB RAM at idle against Windows 11's 144 and 2.29 GB, same VM.

Vanguard ready

Protections stay on

Secure Boot, TPM, UAC, VBS, mitigations and the driver blocklist stay as Windows ships them. Vanguard's On-Demand mode works.

Zero bloat

Nothing you didn't ask for

Copilot, Recall, OneDrive, Edge and 26 preinstalled apps gone. No Microsoft account, no ads, no setup questions.

Measured

Tested, not guessed

Every release is played on a real PC and read from the logs. Tweaks that don't show a gain, or risk a ban, don't ship.

What's inside

A complete system, not a tweak list.

  • Game Booster — background apps lower, updates paused, performance power plan while you play; everything restored after.
  • VALORANT session report — frames under 60 and 30 fps for every round, read from the game's own stats.
  • Stall detector — catches whole-PC freezes over 300 ms and logs what caused them (DPC, disk, RAM).
  • Drivers — the latest NVIDIA driver straight from NVIDIA, signature-checked, clean install.
  • BIOS guide — checks XMP, Resizable BAR, Secure Boot, TPM and VBS and tells you what to change.
  • Compare systems — 5 × 60 s PresentMon passes with a statistical verdict, portable to any PC.
  • Clean look — Mono theme, floating taskbar, classic right-click, light File Explorer.
  • Signed updates — app and fixes arrive without reinstalling; anything not signed by us is refused.
  • Exact undo — every tweak remembers the original value and can be reverted on its own.
  • Arabic + English — the whole app, the setup and the support in both languages.
Numbers

Real measurements only.

No "representative" charts. These are from our own test runs, and the FPS comparison against stock Windows is added when it's measured.

Idle desktopSAME VM · 4 GB RAM

RAMProcessesDiskCPU
Windows 112.29 GB14425.1 GB1.62%
KernelOS1.04 GB6413.9 GB0.37%
KilluaOS0.92 GB589.5 GB0.33%

Measured on KilluaOS 0.4 in Hyper-V, desktop idle after sign-in.

VALORANT, real PC0.5.9 · 14 ROUNDS

248average fps
5.2 msengine latency
0freezes over 300 ms in game

i7-9700 · RTX 2060 · DDR4-2666 · 1080p 320 Hz, low settings. From VALORANT's end-of-round stats.

Included with KilluaOS

The KilluaOS app.

One place for everything: tweaks with exact undo, Game Booster, drivers, BIOS guide, network tools, updates and the full log for support.

Size4 MB
Runtime.NET 4.8.1 (built in)
Game BoosterAutomatic
LanguagesEnglish · العربية
UpdatesSigned, in the app
Changelog

Every release, tested on a real PC.

Download

Coming soon.

KilluaOS is in closed testing. Join the Discord to follow the releases and get it first.

ISO

KilluaOS for Windows 11 26H2

Clean install from USB, about 11 minutes, no Microsoft account.

Coming soon
CONVERTER

Turn your installed Windows into KilluaOS

Keeps your files and programs and creates a restore point first.

Coming soon
Community

Join the KilluaOS Discord.

Releases, support in Arabic and English, and VALORANT squads.

Join Discord