itsfatduck/optimizerDuck

optimizerDuck

optimizerDuck is a free, open-source Windows optimization tool focused on performance, privacy, and simplicity.

Getting Started | How It Works | FAQ

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1. Download from GitHub Releases
2. Run the .exe directly, no installation required
3. Choose the optimizations you want, apply them, and restart your PC when you're ready

Windows works great out of the box. However, a fresh installation also includes background services, telemetry, pre-installed apps, and scheduled tasks that continue running even if you never use them. These consume system resources such as CPU, RAM, disk, and network in the background.

At the same time, many settings that can improve performance, reduce latency, or provide a smoother experience are not enabled by default.

optimizerDuck brings everything together in one place. It helps you optimize Windows, remove unnecessary components, customize system settings, and manage common Windows features without digging through the Registry, Group Policy, or PowerShell.

It also includes built-in management tools, allowing you to see what is running, remove what you don't need, and restore changes whenever necessary.

Why optimize Windows?

42 tweaks across 7 categories, each with a clear description and risk rating so you know exactly what each change does before applying it.

44 settings across 4 categories. No need to dig through the registry, just toggles, dropdowns, and number inputs presented in one place:

• Desktop: Show or hide icons (This PC, Recycle Bin, Network, User Files, Control Panel, all desktop icons), remove shortcut arrow overlays
• Preferences: Taskbar alignment, widgets, Task View, End Task and last active click buttons, search box display, clock seconds, dark mode, file extensions, hidden files, clipboard history, compact view, snap assist, item checkboxes, classic context menu, Bing search, toast and sync notifications, system suggestions, window shake, and launching File Explorer to This PC
• Gaming: Game Mode, Game Bar, background recording, mouse acceleration, fullscreen optimizations, hardware-accelerated GPU scheduling
• System: Num Lock on boot, Developer Mode, sideloading trusted apps, long paths, and battery percentage

The fastest way to improve performance is always upgrading your hardware. A better CPU, GPU, more RAM, or a faster SSD will usually provide much larger improvements than software tweaks alone.

But hardware is only one part of the picture.

Windows is designed for hundreds of millions of PCs with different hardware, workloads, and users. Because of that, Microsoft ships Windows with settings that prioritize compatibility, stability, battery life, and ease of use instead of maximum performance.

As a result, a default Windows installation includes many background services, scheduled tasks, telemetry, power-saving features, and pre-installed apps that many users may never need.

This is especially true after reinstalling Windows. Even after installing all drivers and updates, many useful performance-related settings remain untouched, while unnecessary background components continue running.

Optimizing Windows is simply about reducing unnecessary overhead so your PC can spend more of its resources on what actually matters, whether that's gaming, programming, content creation, or everyday work.

It won't magically double your FPS, but it can reduce background activity, lower system latency, improve responsiveness, and help your hardware perform more consistently.

This is also one reason why many people recommend Linux for better performance and lower system overhead. If you prefer staying on Windows for its software compatibility and familiar experience, optimizerDuck helps you get the best possible experience without switching operating systems.

The best time is after setting up a fresh Windows installation.

We recommend this order:

1. Install Windows.
2. Install all hardware drivers (chipset, GPU, network, audio, etc.).
3. Run Windows Update until no more updates are available.
4. Install all Optional Updates.
5. Open the Microsoft Store and update all built-in applications.
6. Install the software and games you normally use.
7. Apply your preferred optimizerDuck optimizations.
8. Use optimizerDuck's built-in tools to remove unnecessary apps, clean up Windows, and manage startup programs.

Following this order helps avoid Windows or driver updates overwriting your optimizations later.

Changing system settings carries risk. optimizerDuck is built around reversibility and user control.

See the Privacy Policy for details on our data practices.

• Automatic backups: Every change writes a revert file to a local folder. You can restore individual tweaks or roll back everything
• One-click revert: Undo any applied optimization from the UI with a single click
• Risk ratings: Each tweak is labeled Safe, Moderate, or Risky based on its potential impact
• No defaults applied: Nothing runs until you select it. The tool does not enable anything on its own
• Restore point prompt: Before your first optimization, the app suggests creating a Windows restore point

Yes. optimizerDuck is fully open-source (GPL v3), meaning anyone can inspect, audit, or build the source code themselves. Every release is built automatically by GitHub Actions from the public source; no hidden modifications, no unsigned binaries injected after build. If you prefer, you can clone the repo and build the .exe yourself with a single dotnet build.

The app does not collect any telemetry, usage data, or personal information. See the Privacy Policy.

It can help. Every optimization in optimizerDuck is researched from well-known tools, community guides, and hardware vendor recommendations, nothing is AI-generated, blindly added, or made up. Each tweak addresses a real setting that Windows configures conservatively by default (e.g., service host grouping, GPU power states, network throttling, process scheduling).

There are no fake registry hacks here, every change has a documented purpose and real-world impact backed by community testing and vendor documentation.

optimizerDuck is not code-signed because code signing certificates are expensive for open-source projects. When Windows encounters an unsigned executable downloaded from the internet, SmartScreen displays a warning by default. This is normal and does not mean the file is unsafe.

To bypass, click "More info" > "Run anyway". If you are still concerned:

• Build the .exe yourself from source
• Submit the binary to online sandboxes like ANY.RUN for independent verification

Yes. Every optimization creates a revert file before applying. You can undo individual tweaks or roll back everything from the UI with one click. The app also suggests creating a Windows System Restore point before your first optimization.

Yes. optimizerDuck supports Windows 10/11 (x64 & ARM64).

Yes. optimizerDuck modifies system settings and the Windows registry, so it requires administrator privileges to run.

No. The app contains zero telemetry, analytics, or phone-home functionality. It runs entirely offline and does not send any data anywhere.

A known Task Manager display bug triggered by non-default power plans, it incorrectly reports 100% CPU on some systems while actual load is normal. Visual only, does not affect real performance or cause overheating. If unwanted, simply toggle off this optimization.

Make sure you are running as Administrator. optimizerDuck requires elevated privileges. If it still crashes, download the latest version from Releases; an outdated build may be incompatible with your Windows version.

Some optimizations require a system restart to apply fully. If a tweak doesn't appear to work after restarting, try applying it again or check the revert section to verify the change was saved.

Revert files are stored in %LocalAppData%\optimizerDuck\Revert\. If a file is accidentally deleted or corrupted, you can restore it from a backup or create a System Restore Point beforehand as a fallback.

Windows feature updates occasionally reset certain registry values and service configurations to defaults. Simply re-apply your previous optimizations from the app after a major update.

Open an issue on GitHub with as much detail as possible: your Windows version, what you applied, and what went wrong. Feature requests are also welcome.

• Framework: WPF on .NET 10, using the WPF UI library for Fluent design
• Revert system: Four revert step types (Registry, Service, Scheduled Task, Shell) with JSON-persisted state and thread-safe file I/O
• Theming: Dark (default), Light, and High Contrast modes with Mica backdrop support
• No installer: Runs as a single .exe, no installation required
• Backup system: Local folder-based backup for every change, with one-click restore
• Discovery: Optimization and Feature categories are discovered automatically via reflection + custom attributes, no manual registration needed
• No telemetry: The app does not collect any user data

Guides, optimization details, and usage tips.

Bug reports, new optimizations, docs improvements, and translations are all welcome. See CONTRIBUTING.md (Japanese, Turkish).

If optimizerDuck helped your PC:

• ⭐ Star the repo
• 💬 Join Discord for support
• 🐞 Report bugs on GitHub
• 🎁 Support the project here

• 🌐 Website
• 📖 Documentation
• 💬 Discord
• 🐞 Issues

Bug reports, feature suggestions, translations, and sharing your experience all help the project.

optimizerDuck is provided "as is", without warranty of any kind.

By using this tool, you agree that the authors are not liable for system instability, data loss, or issues caused by third-party software or user modifications.

Always create a restore point before applying changes.

GPL v3 License
See LICENSE.