ET Optimizer

Optimize performance, improve privacy, and remove bloatware with 1 click.

Application developed from many sources found on the Internet, tested and updated.
ET-Optimizer uses: built-in windows tools, contains 356 registry values and 136 calls to the system shell like cmd.

Originally ET was a batch script file then evolved into a .bat file with vbs and powershell implemented, then was rewritten entirely to powershell, and over the years became a mostly fully-fledged C# application.

The first version appeared in a simple version for personal use in 2021. So far the project has grown to: 4161 lines of code, 860+ commits, translated into 6 languages ​​and is being developed further with love ❤️

Warning

Antiviruses may falsely detect as a threat.
It's recommended to make a own extra backup. I am not responsible for any damage caused.

📷 Screenshots

First Look

During Operation

Extras

🛠 What it does

🔧 Performance Tweaks

1. Disable Edge WebWidget – removes the unnecessary Edge browser widget.
2. Set Power Plan to Ultimate Performance – configures Windows to favor maximum performance.
3. Lower svchost split threshold – optimizes how system services are handled.
4. Dual boot timeout: 3 seconds – speeds up boot time in multi-OS setups.
5. Disable Hibernation and Fast Startup – frees up disk space and may fix sleep issues.
6. Disable Windows Insider Experiments – ensures system stability by avoiding test features.
7. Disable App Launch Tracking – increases privacy and slightly boosts performance.
8. Disable PowerThrottling (Intel 6th gen+) – gives apps full CPU access.
9. Turn Off Background Apps – reduces CPU and RAM usage.
10. Disable Sticky Keys Prompt – avoids annoying popup messages.
11. Disable Activity History – stops Windows from tracking user activity.
12. Disable Updates for Microsoft Store Apps – reduces system background activity.
13. Disable SmartScreen for Apps – speeds up app launches and reduces interruptions.
14. Allow Websites to Provide Local Content – improves browser speed and relevance.
15. Fix Microsoft Edge Settings – resets and restores default Edge settings.
16. Disable Location Sensors – saves battery and enhances privacy.
17. Disable Auto-Sharing WiFi Hotspot – prevents unwanted network sharing.
18. Disable Shared HotSpot Connections – stops auto-joining shared hotspots.
19. Updates Notify for Scheduled Restart – prevents sudden reboots.
20. Set P2P Updates to LAN Only – reduces external bandwidth usage.
21. Set Lower Shutdown Time (2 seconds) – speeds up shutdown process.
22. Remove Old Device Drivers – frees up space and avoids conflicts.
23. Disable “Get Even More Out of Windows” prompt – removes nagging suggestions.
24. Disable Installing Suggested Apps – keeps your Start menu clean.
25. Disable Start Menu Ads/Suggestions – cleaner and faster Start experience.
26. Disable Suggested Apps in Windows Ink Workspace.
27. Disable Unnecessary Windows Components – lightens the system.
28. Defender Scheduled Scan Nerf – limits its system impact.
29. Defragment Indexing Service File – speeds up Windows Search.
30. Disable Nagle’s Algorithm (Delayed ACKs) – improves network latency.
31. CPU/GPU Priority Tweaks – ensures smoother performance.
32. Enable Service Tweaks – optimizes how system services are run.
33. Remove Preinstalled Bloatware – clears space and removes distractions.
34. Disable Unnecessary Startup Apps – boosts system boot speed.
35. Enable Long System Paths – supports deeper folder structures.
36. Disable Fullscreen Optimizations + Enable RAM Tweaks – improves game and system responsiveness.

🔐 Privacy

1. Disable Telemetry Scheduled Tasks – prevents Windows from auto-collecting background data.
2. Remove Telemetry/Data Collection Components – strips out system parts responsible for tracking.
3. Disable PowerShell Telemetry – stops Microsoft from logging script usage.
4. Disable Skype Telemetry – removes built-in tracking within Skype.
5. Disable Media Player Usage Reports – stops sending data on how media is played.
6. Disable Mozilla Telemetry – blocks Firefox from reporting user behavior.
7. Disable Apps from Using My Advertising ID – limits ad personalization and tracking.
8. Disable Sending Info About Writing (typing) – prevents data collection related to typing.
9. Disable Handwriting Recognition – improves privacy for stylus users.
10. Disable Watson Malware Reports – prevents sending malware incident reports.
11. Disable Malware Diagnostic Data Collection – blocks background logging of threats.
12. Disable Reporting to Microsoft MAPS – avoids participation in MS malware alert network.
13. Disable Spynet Defender Reporting – stops Defender from reporting to Microsoft cloud.
14. Do Not Send Malware Samples Automatically – full control over what’s submitted.
15. Disable Sending Typing Samples – more privacy for physical and on-screen keyboard use.
16. Disable Sending Contacts to Microsoft – keeps your contacts offline and private.
17. Disable Cortana – disables Microsoft’s digital assistant.
18. Remove Copilot – removes the AI-powered assistant introduced in newer Windows builds.

🎨 Visual Tweaks

1. Show File Extensions in File Explorer – improves clarity when working with files.
2. Disable Transparency on Taskbar – speeds up UI and improves battery life.
3. Disable Windows Animations – makes UI snappier and faster.
4. Disable MRU Lists (Jump Lists) – keeps the Start menu and taskbar tidy.
5. Set Search Box to Icon Only – minimizes visual clutter.
6. Open File Explorer to This PC – skips “Quick Access” and goes directly to drives.
7. Remove “Learn about this photo” Feature – cleaner photo viewer interface.
8. Enable Old Context Menu – restores classic right-click menu (Windows 11 style fix).

📦 Other

1. Remove Game Bar / Xbox DVR – eliminates background game-related services.
2. Clean Temp, Cache, Prefetch, Logs – frees up disk space and improves speed.
3. Scan for Adware (AdwCleaner) – detects and removes potentially unwanted software.
4. Clean WinSxS Folder – reduces size of the Windows component store.
5. Remove News & Interests / Widgets – removes taskbar widgets in Windows 10/11.
6. Tweak Unnecessary Services Behavior – disables or adjusts unused system services.

⚙️ Expert Mode

1. Disable Spectre/Meltdown Mitigations – improves performance at the cost of security.
2. Disable Windows Defender – removes built-in antivirus completely.
3. Disable Xbox Services – shuts down Xbox-related background processes.
4. Remove OneDrive – fully uninstalls Microsoft's cloud sync tool.
5. Enable Fast/Secure DNS (1.1.1.1) – improves DNS speed and privacy using Cloudflare.
6. Disable Process Mitigations – lifts certain OS-level security limits for advanced tweaks.

The application has a function to restore to the previous settings.

👏 Community Shares

https://programyzadarmo.net.pl/threads/et-optimizer.52612/

https://www.majorgeeks.com/files/details/et_all_in_one_optimization_script.html

https://filecr.com/windows/semazurek-et-optimizer/

https://en.taiwebs.com/windows/download-et-optimizer-9574.html

https://www.essential-freebies.de/board/viewtopic.php?t=19662

https://www.softpedia.com/get/Tweak/System-Tweak/ET-All-in-One-Optimization-Script.shtml

https://scloud.ws/blog/optimization/5370.html

https://rsload.net/soft/optimization/39444-et-optimizer.html

https://www.yasdl.com/tag/%D8%AF%D8%A7%D9%86%D9%84%D9%88%D8%AF-et-optimizer

https://www.youtube.com/watch?v=vIzWJ7OjgXA

https://www.youtube.com/watch?v=BM_AirabkB8

https://www.youtube.com/watch?v=FFKeJuXC4HA

https://www.youtube.com/watch?v=G048P3g8bGM