A diagnose-first PowerShell toolkit that trims Windows down for gaming, snapshots every change, and keeps a safe path back if a session or optimization does not finish cleanly.
I've always liked gaming on PC. Over time I kept noticing the same thing every session: Windows, straight out of the box, keeps a surprising amount running in the background that I never asked for. Search indexing, telemetry, apps trying to launch themselves, background sync, all of it competing for the same CPU and disk a game needed right when it mattered most.
Most of the "optimizer" scripts I found online were the same shape: a wall of registry tweaks and disabled services, no explanation of why, no guarantee nothing you actually use breaks along the way. So I built the version I actually wanted: something that reads what's really slowing the machine down before touching anything, and treats the aggressive part (closing apps, pausing sync, pausing background services) as a mode you switch on for a session, not a setting you're stuck with afterwards.
That's nem0w-gameboost: diagnose first, keep the risky part reversible, and never touch anything you didn't ask it to.
Recovery snapshots are written before changes are applied. Game Mode tracks process priorities by PID and retains its recovery file after a partial failure, giving the next recovery attempt the information it still needs. Permanent optimizations and temporary session changes have separate recovery paths.
Select Show all to read the complete simulated session.
-WhatIf previews the main routines without requesting UAC or changing the systemThis release makes every optimization easier to inspect, undo, and recover if Windows interrupts a step halfway through.
Undo-Permanent.ps1 restores saved system settings-WhatIf previews the main routines without changing the PCnem0w-gameboost isn't chasing a mythical +30% FPS. It's the boring, reliable kind of tool: it shows what's actually slowing the PC down, applies the fixes that are genuinely safe to leave on, and keeps everything riskier scoped to the moment a game is actually running. Built for the same reason most of my projects start: something I wanted for myself, that didn't exist yet in the shape I wanted it.