Pay once. That's it.

Usually some, and more consistent frame times almost always — fewer processes means fewer interruptions, and the power plan stops the CPU dropping its clock between frames. How much depends on your GPU and the game: if your graphics card is the bottleneck, no Windows tweak changes that. The BIOS checklist is where the big free gain is on most PCs: RAM running at its rated speed instead of the default.

Yes. Vanguard, Easy Anti-Cheat, BattlEye and Ricochet are never stopped, disabled or delayed, and nothing here injects into a game or touches game files. VALORANT (Vanguard On-Demand) and FACEIT now require Secure Boot, TPM 2.0, IOMMU and memory integrity on; the script reports all four, refuses to switch memory integrity off on a PC where either is installed, and the BIOS checklist says where each one is.

No. Defender, the firewall, UAC, SmartScreen, Secure Boot and Windows Update are not touched. The one trade that exists — memory integrity (VBS) off, which costs a few percent of performance while it is on — is opt-in with -Aggressive, explained, and asked about again before it happens. The report goes the other way too: if another tool ever switched Defender, updates, SmartScreen, UAC or the CPU mitigations off on your PC, it says so, with the way back.

You do not have to take our word for it. Read what it changes first: every service, task, app and setting it touches is listed with the reason on Everything it touches, written from the script itself, which is one readable PowerShell file with nothing compiled, hidden or downloaded later. With your key, $env:OMNIDX_MODE='read'; irm omnidx.net/go.ps1 | iex saves the exact copy that would run on your PC to your desktop, with its hash, and changes nothing. Then run the free report, which reads your PC the way the tune does and changes nothing: $env:OMNIDX_MODE='report'; irm omnidx.net/go.ps1 | iex

When you run it for real, nothing changes until Windows has made a restore point (if Windows refuses one, it says why and asks before carrying on), every change is written to a record on your PC, and undo puts each one back: $env:OMNIDX_MODE='undo'; irm omnidx.net/go.ps1 | iex. Services are set to manual, never deleted. And every version is run on a Windows machine before the site publishes it (the report, the full tune with a key, then undo), with the results on the trust page.

If your games run on it, Linux is a good choice. Many of the most played competitive games do not: VALORANT, League of Legends, Fortnite and Call of Duty all use anti-cheat that does not run on Linux. The tune is for people staying on Windows: genuine Windows, running lean, with anti-cheat left working.

Yes, and it knows it is a laptop. The battery side of the power plan stays sensible, lid, brightness and sensor services stay, Wi-Fi and Bluetooth stay if you have them, and hibernation is left alone. Everything else is the same cut.

Run undo: $env:OMNIDX_MODE='undo'; irm omnidx.net/go.ps1 | iex, or double-click C:\OmniDx\undo\undo.ps1. Every change is put back from the record it kept. And there is the restore point from before the run, which puts the whole system back. A service you decide you wanted can be started again from Services in the usual way; the script sets things to manual, it never deletes them. Everything known to go wrong, and the fix for each, is on the known issues page.

Monthly updates, no: the apps are removed from the image as well as your account, and the policies that let Windows quietly install "suggested" apps are off. A feature update (the once-a-year kind) can re-provision a few Microsoft apps such as Outlook, Teams and Copilot. Run the command again after one; same key, same PC, free, and it takes the same three minutes.

Run the command again. The PC remembers its key, so a second run asks for nothing; the same PC can run the tune as often as it likes, because the key is locked to the machine, not to a number of runs. With OmniDx Edition, the OmniDx Hub checks when you open it and puts back what an update turned on in one click.

Yes, by yourself: on the key page, "New PC? Move this key" moves it once every 30 days with your order or receipt number. Sooner than that, email support with your receipt. A key is one PC; that is what makes it cheap and what stops it being passed around. A new board, or a fresh Windows install on the same board, counts as the same PC if the board and CPU are the same.

$39.99 once for three keys — three separate keys would be $59.97. One is yours, two are for whoever you like; each locks to the first PC that runs it, and a second PC on the same key is refused. Each PC gets its own read, its own cut and its own checklist.

For Fortnite, Apex Legends, Counter-Strike 2, Marvel Rivals, Rocket League, Rainbow Six Siege and Minecraft, it writes V-Sync off, motion blur off and the shadow and post-processing settings players use into the game's own settings file, after asking. It backs up each file first, skips a game that is running, and only changes a setting the file already has. Undo puts each value back. Everything else in the game is untouched, and the free report lists what it would write before you pay.

No. With OBS Studio, Streamlabs Desktop or XSplit installed, the camera frame server and Windows Graphics Capture are kept, even in Extreme, and the report lists the encoder and capture settings worth checking. If your streaming app is somewhere else, add -Streamer to the command.

Neither. Voltage belongs to your GPU's tool and your BIOS, and the tune never touches it. The report and the undervolt guide say how to undervolt safely (cooler and quieter for the same frames) and set a frame cap that stays smooth.

Those builds reach their numbers partly by removing Defender, Windows Update and the protections anti-cheat now requires. The tune stops short of all of that, on genuine Windows, with an undo. For a clean start, the free answer file sets up a fresh install in one go. The full comparison.

Included with every key, at no extra charge. It sets genuine Windows up for games in one go: the OmniDx look, Windows' own search on the Windows key (this PC only), a light browser, OmniDx Hub with three presets, the lean stage, and the tune in Extreme. It goes on a Windows USB stick made by Microsoft's own tool for a clean install, or straight onto your PC as it is, with one line from your key page. It is not a modified Windows image, anti-cheat keeps working, and one line takes it off. The guide, step by step, and the film.

No. The standard run is the tune. Extreme is a second command shown after you buy, for people who will give up conveniences for a few more frames: notifications, animations, transparency, the search box, clipboard history, nearby sharing, Windows Search and the extra services go. It asks before it runs, and undolast puts only that run back while the standard tune stays.

No. There is no login anywhere on this site. You pay, you get a key, you paste one line. The key page is saved in your browser and your Square receipt gets it again.

The key check: your key and a fingerprint of the PC — a hash of the board serial, the system id and the CPU id, which identifies the machine without describing it — plus the CPU and GPU names so your own machines can be told apart. Nothing else leaves the PC. The report stays in C:\OmniDx. Where each piece is kept, and for how long: the terms and privacy page.

Yes. Report mode is free, needs no key and changes nothing: it reads your PC, counts the processes and shows what it found. And everything it changes is listed with the reason.

No. Windows 10 (1903 or later) and Windows 11, in any language: it knows the PC by what the hardware reports to Windows, not by English names, so a Spanish or Portuguese Windows gets the same tune. It uses the PowerShell every one of them ships with, so there is nothing to install first.

Square sends you straight back to the key page with it on screen, and that page keeps it: open it again in the same browser and it is there. Closed the tab and cleared the browser? Type in the short receipt number from Square's receipt email (the one that looks like #AB12) with the email you paid with, pick what you bought, and it shows again.

Yes. The key appears on the screen after paying; copy it and send it to them, and it locks to the first PC that runs it, theirs. For a group, Squad is three keys for $39.99, about the price of two.

The number that counts is the process count after a restart, and nobody is at the keyboard to read it then. So the tune leaves one scheduled task that runs once at your next sign-in, waits two minutes, writes the count to C:\OmniDx\after-restart.txt and deletes itself. The same line carries the boot time of that start in Windows' own figure, next to the one the report took before the tune. It is the only thing the tune ever schedules, it is in the undo list, and -NoAfterCount skips it.

A feature update resets a few service start types, re-enables some scheduled tasks and puts a handful of values back. Nothing of the tune runs at sign-in or in the background to watch for that (since 1.117.0, when the old sign-in task went). $env:OMNIDX_MODE='status' lists what came back, changing nothing; running the command again puts it back, same key, free; with OmniDx Edition the OmniDx Hub checks when you open it and does it in one click. Only what the tune recorded is set again, never startup apps or your own settings, and each put-back is logged in C:\OmniDx\keep-log.txt.

A PC joined to a work or school domain gets a warning and a question first: group policy can put settings back, and IT may have opinions. A virtual machine runs but the numbers mean little there. On a family PC where a standard account gave an administrator's password at the prompt, the tune notices and applies the per-user settings to the account that is signed in, not the administrator's.

Not as a rule. The key is on the screen Square sends you to, which has buttons to copy it, email it to yourself, save it as a file or print it, and it stays in that browser. The key page shows it again any time with your receipt number and the email you paid with. When the shop has emailing switched on, it also goes to the address you gave at checkout, and a "Send it again" button appears under the keys.

Maybe, for new buyers. Never for you — you paid once, and every future version of the script is included.