Tunero

Built to be the only PC optimizer you need.

Tunero scans your PC for what costs your games frame rate and fixes what it can. It is built to replace the tweak tools, debloat scripts, startup managers and cleaners you would otherwise collect. Every change is explained with sources, and every setting it changes is backed up first and can be undone.

Download Tunero.exe66 MB

Version 1.0.0 for Windows 11 25H2 or newer, x64. In English and German. Free software under the GPL-3.0-only. What changed

The exe is not code signed yet, so Windows SmartScreen may warn on the first start. Why

The Overview page of Tunero: the verdict of the scan, the readiness score in one line, the findings with their impact rating, and the start of the recommended changes.
The Overview after a scan, on a test PC in a virtual machine.

Only problems the scan finds rate 5. No tweak does.

Checks and tweaks share one scale for games, from 0 to 5. The largest gains come from problems the scan finds, such as a monitor below its refresh rate or a processor held at its base clock.

Of the 224 tweaks, 23 can matter for games, some only on some PCs: Restore processor turbo rates 4 where the power plan holds the processor at its base clock, and 0 everywhere else. The app rates each tweak for the PC it runs on and shows the rating next to every check and tweak, as a number and five bars.

Rated 5: 4 problems the scan finds

Problems the scan finds. It fixes them or tells you how.

  • Display refresh rate below its maximum
  • Graphics card without a driver
  • Monitor connected to the motherboard instead of the graphics card
  • Processor turbo disabled by the power plan

Rated 4: 1 tweak

  • Restore processor turboon some PCs, otherwise 0

Rated 3: 3 tweaks

  • Hardware-accelerated GPU scheduling (HAGS)on some PCs, otherwise 0
  • Game Mode onon some PCs, otherwise 1
  • Virtualization-based security and memory integrity offon some PCs, otherwise 2

Rated 2: 2 tweaks

  • Switch to the Balanced power plan
  • Gaming power plan (based on High performance)on some PCs, otherwise 1

Rated 1: 17 tweaks

  • Ultimate Performance power plandisputed
  • Optimizations for windowed games
  • Mouse acceleration off
  • Page file managed by Windows
  • TRIM on
  • Remove forced platform clock (useplatformclock)
  • NVIDIA Low Latency Mode: On
  • NVIDIA shader cache: unlimited
  • NVIDIA power mode: prefer maximum performance (global)
  • Network adapter power saving off
  • No Sticky Keys, Filter Keys and Toggle Keys shortcuts
  • Variable refresh rate for older full screen games
  • Power throttling offon some PCs, otherwise 0
  • Game Bar captures offon some PCs, otherwise 0
  • Visual effects: best performanceon some PCs, otherwise 0
  • Transparency effects offon some PCs, otherwise 0
  • Game Bar recording off by policyon some PCs, otherwise 0

Rated 0: 201 tweaks

Popular gaming tweaks with disputed evidence. Offered, rated 0, and their pages explain the dispute.

  • PCIe link power management off
  • Memory compression off
  • SysMain (Superfetch) off
  • Network throttling off (NetworkThrottlingIndex)
  • Delayed TCP acknowledgements off (TcpAckFrequency)
  • Background apps off
  • NVIDIA texture filtering: high performance
  • Interrupt moderation off (Expert)

And 193 more, most of them for privacy, the browser and Windows. They do not promise frame rate.

The scan looks for what really costs frame rate

50 read-only checks look for problems that cost frame rate or smoothness. A check that cannot read a value says unknown and gives no advice.

A profile decides what is recommended and which impact counts: Gaming, Laptop gaming, Battery, Office, Quiet and cool, or Older PC. It changes nothing by itself.

The 50 checks

  1. AMD Chipset Software not installed
  2. AMD fTPM stutter (AM4)
  3. AMD Software settings for gaming
  4. Battery capacity worn
  5. BIOS older than a year
  6. Display refresh rate below its maximum
  7. Drive health
  8. Energy Saver is on while plugged in
  9. Ethernet slower than the adapter supports
  10. Game access: anti-cheat requirements
  11. Game library on a hard disk
  12. Games may run on the integrated graphics
  13. Gaming laptop running on battery
  14. Graphics card PCIe link width
  15. Graphics card without a driver
  16. Graphics driver older than six months
  17. Hardware virtualization off in the BIOS
  18. Integrated graphics enabled but unused
  19. Intel 13th/14th gen: BIOS microcode update needed
  20. Intel Application Optimization (APO)
  21. Intel Core Ultra 200S: BIOS update with microcode
  22. Laptop screen runs through the integrated GPU
  23. Leftovers from other tweak tools
  24. Low amount of memory (8 GB or less)
  25. Low free space on a drive
  26. Many programs start with Windows
  27. Memory below its rated speed (XMP / EXPO)
  28. Memory in single channel
  29. Memory integrity is on
  30. Memory modules from different kits
  31. Monitor connected to the motherboard instead of the graphics card
  32. Monitor supports more than Windows offers
  33. NVIDIA global settings limit every game
  34. NVMe SSD link
  35. Overlay and capture programs running
  36. Power mode set to best power efficiency
  37. Power saver plan on a desktop PC
  38. Processor turbo disabled by the power plan
  39. Programs busy in the background
  40. Resizable BAR
  41. Restart pending
  42. Ryzen memory speed
  43. Ryzen X3D with two chiplets: power plan
  44. Secure Boot certificates from 2023
  45. Throttling under load
  46. TRIM disabled for SSDs
  47. Unexpected shutdowns
  48. Variable refresh rate (G-SYNC, FreeSync)
  49. Wi-Fi connected on 2.4 GHz
  50. Windows is installed on a hard disk

Built to replace a folder full of tools

Tunero brings together what people otherwise collect from tweak tools, debloat scripts, startup managers, cleaners and system utilities, and leaves out what does nothing. What it leaves to other tools, such as a driver cleaner, is listed in its README. These are its main pages, grouped as in the app.

Overview
50 checks that find what costs frame rate, with a fix or the steps for the BIOS and drivers.

Optimize

Tweaks
224 documented settings for games, privacy, the browser, Windows and Windows Update, each with its evidence.
Graphics & DNS
NVIDIA driver settings, maximum performance only for the games you pick, and a DNS benchmark.
Startup
Everything that starts with Windows, with signature checks and snapshots to compare.
Services & tasks
Start types, with what each service does.

Clean up

Remove apps
130 reviewed inbox and manufacturer apps, and programs with their own uninstaller.
Cleanup
12 categories of temporary files, caches and leftovers, without following links.

Maintain and check

Install & update
Install and update apps with winget, and see how old the drivers are.
Tools
Storage analyzer, Windows features, network fixes, Windows Update repair, SFC and DISM.
Health
A frame time benchmark with PresentMon, a throttle check and drive health.
Changes
Every change with Undo, and an export to move your changes to another PC or a fresh install.

Every change is explained before it happens, and can be undone

Each check and each tweak has a page in English and German: what it does, what it writes, why it can help, how solid the evidence is, and the sources. The app shows it next to the switch. This is the page for turning off mouse acceleration:

Explanation page in the app

Mouse acceleration off

Impact 1 of 5

Summary

Turns off "Enhance pointer precision", so the same hand movement always moves the cursor the same distance.

What changes

Now shows the Windows defaults. The app shows the values of your PC.
HKCU\Control Panel\Mouse
ValueNowNew
MouseSpeed10
MouseThreshold160
MouseThreshold2100

How it works

With the option on, Windows applies pointer acceleration: when the mouse moves faster than two thresholds, Windows multiplies the distance2. The app sets MouseSpeed (the acceleration level), MouseThreshold1 and MouseThreshold2 to 0 in your user profile and applies them to the running session1. The setting is "Enhance pointer precision" in the Mouse Properties dialog (Settings > Bluetooth & devices > Mouse > Additional mouse settings > Pointer Options).

Evidence

Games that read raw mouse input (WM_INPUT) get the movement without pointer acceleration, so this setting does not change aiming there3. It matters in games and menus that use the Windows cursor.

Trade-offs & risks

The cursor may feel slower at first on the desktop; adjust the pointer speed or mouse DPI to taste.

Where the evidence does not hold up, the page says so. The page for Ultimate Performance power plan, a popular tweak:

We found no reliable gaming measurement that shows a difference to High performance beyond run-to-run variance. Treat it as disputed.

Read the whole page

What happens when you apply

  1. Restore pointCreated before the first change, when System Protection is on.
  2. BackupEach value is saved before it changes.
  3. CheckAfter applying, each change is checked.
  4. UndoThe Changes page lists every change with Undo, also after a restart or an update of the app.

After a Windows update, the app shows which changes Windows reset and offers to apply them again. Removed apps and deleted files are the exception, and the app says so before it removes them.

Changes that turn off security features or touch the boot configuration stay behind Expert mode, and none of them is ever recommended automatically. A tweak that is not yet proven on real hardware carries the badge "Not yet tested on a real PC" and is never part of Apply recommended.

The Tweaks page of Tunero with Mouse acceleration off selected: groups of tweaks with their impact rating and switches, and its explanation in the details pane.
The same tweak on the Tweaks page.

What it leaves out, and why

Some popular tweaks are not offered at all, because they do harm or change nothing. Search for one in the app, and it tells you why.

The full list, with sources

It goes online only when you ask it to

No telemetry, no account, no ads, and nothing running in the background: it runs only when you start it, as one exe without installation.

The update check is off until you turn it on. A VirusTotal lookup needs your own key and sends file hashes, never files. The DNS benchmark and app installs run when you start them.

Everything the app sends, and to whom

Get Tunero

  1. DownloadThe exe of the latest release.Download Tunero.exe66 MB
  2. CheckCompare its SHA-256 with the .sha256 file on the release page.
    Get-FileHash Tunero.exe
  3. StartIt needs no installation. On the first start it offers an entry in the Start menu.

With a package manager

Scoop
scoop bucket add tunero https://github.com/jozuern/scoop-bucketscoop install tunero/tunero

All releases

Support Tunero

Tunero is free, with no ads, no account and no paid version. If it helps you and you want to give something back, you can support its development on Ko-fi or GitHub Sponsors. Bug reports and ideas help just as much.

Support on Ko-fiSponsor on GitHub

Support unlocks nothing: every feature is in the free exe.

Questions

Will it make my games faster?
When the scan finds a real problem, often noticeably: a monitor stuck at 60 Hz, memory without its XMP or EXPO profile, or a processor held at its base clock costs a lot of frame rate, and Tunero fixes it or tells you how. Most tweaks are about privacy, the browser and Windows and are rated 0 for games; the ones that can matter are rated for your PC, and each page says how solid the evidence is. The Health page has a frame time benchmark, so you can measure the difference in your own games.
Why does Windows warn when I start it?
The exe is not code signed yet, so SmartScreen does not know it. Click More info, then Run anyway. SignPath Foundation, which signs open source projects for free, signs only projects that are already widely known; Tunero will apply again once it is. Until then, compare the SHA-256 of the download with the .sha256 file on the release page.
Why does it need administrator rights?
Most settings it changes apply to the whole PC. Its data folder is locked to administrators.
Does it work on Windows 11 Home?
Yes. Tweaks that rely on Group Policy are offered only on Pro, Enterprise and Education. Home has been tested less than Pro so far.
Can I remove it completely?
Settings > Uninstall offers to undo every change first. Then it removes the exe, its data folder and its Start menu entry.