Download Nyx
Windows 10 version 2004 (build 19041) or newer, 64-bit. Needs the .NET 8 desktop runtime — the installer checks and offers to fetch it if it is missing.
Version 0.1.0
Stable channel
Released 3 October 2026 · —
First build. 47 tweaks, before/after measurement, one-click restore.
SHA-256
0000000000000000000000000000000000000000000000000000000000000000
Check it before you run anything that asks for administrator rights. In PowerShell:
Get-FileHash .\NyxSetup-0.1.0.exe -Algorithm SHA256
Before you install
Two things worth knowing
Nyx asks for administrator rights the moment it starts. Here is exactly why, and what it does with them.
Why it needs administrator
The settings that matter are machine-wide: the TCP/IP parameters under HKLM, your adapter's driver properties, the CPU scheduler quantum, power plan values. None of that is reachable from a normal user token. Nyx requests elevation in its manifest rather than starting unelevated and silently failing half its work.
Windows will warn you about an unsigned build
If you are self-hosting and built it yourself without a code-signing certificate, SmartScreen will show a warning. That is SmartScreen doing its job — verify the hash above against the file you downloaded and decide for yourself.
Also included
The command line, for when the app will not start
nyx.exe ships alongside the desktop app. It is the recovery path: restore works from a plain terminal with no network, no licence check and no running server — including from Safe Mode, where a desktop app does not load at all.
nyx status what is applied, and what this PC looks like nyx measure mc.hypixel.net latency, jitter and loss to a host nyx route 1.1.1.1 trace the path and explain what is slow nyx optimize --game fivem measure, apply, measure again nyx optimize --dry-run report what would change, write nothing nyx restore undo everything Nyx has done nyx snapshots --export <id> the file to attach to a support ticket