Name	Name	Last commit message	Last commit date
Latest commit History 963 Commits
ET	ET
ET.sln	ET.sln
HowTo-ISO.png	HowTo-ISO.png
LICENSE	LICENSE
README.md	README.md
autounattend.xml	autounattend.xml

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 360+ registry values and 60+ calls to the system shell.

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: 5000+ lines of code, 900+ commits, translated into 13 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

Disable Edge WebWidget – removes the unnecessary Edge browser widget.
Set Power Plan to Ultimate Performance – configures Windows to favor maximum performance.
Lower svchost split threshold – optimizes how system services are handled.
Dual boot timeout: 3 seconds – speeds up boot time in multi-OS setups.
Disable Hibernation and Fast Startup – frees up disk space and may fix sleep issues.
Disable Windows Insider Experiments – ensures system stability by avoiding test features.
Disable App Launch Tracking – increases privacy and slightly boosts performance.
Disable PowerThrottling (Intel 6th gen+) – gives apps full CPU access.
Turn Off Background Apps – reduces CPU and RAM usage.
Disable Sticky Keys Prompt – avoids annoying popup messages.
Disable Activity History – stops Windows from tracking user activity.
Disable Updates for Microsoft Store Apps – reduces system background activity.
Disable SmartScreen for Apps – speeds up app launches and reduces interruptions.
Allow Websites to Provide Local Content – improves browser speed and relevance.
Fix Microsoft Edge Settings – resets and restores default Edge settings.
Disable Location Sensors – saves battery and enhances privacy.
Disable Auto-Sharing WiFi Hotspot – prevents unwanted network sharing.
Disable Shared HotSpot Connections – stops auto-joining shared hotspots.
Updates Notify for Scheduled Restart – prevents sudden reboots.
Set P2P Updates to LAN Only – reduces external bandwidth usage.
Set Lower Shutdown Time (2 seconds) – speeds up shutdown process.
Remove Old Device Drivers – frees up space and avoids conflicts.
Disable "Get Even More Out of Windows" prompt – removes nagging suggestions.
Disable Installing Suggested Apps – keeps your Start menu clean.
Disable Start Menu Ads/Suggestions – cleaner and faster Start experience.
Disable Suggested Apps in Windows Ink Workspace.
Disable Unnecessary Windows Components – lightens the system.
Defender Scheduled Scan Nerf – limits its system impact.
Defragment Indexing Service File – speeds up Windows Search.
Disable Nagle’s Algorithm (Delayed ACKs) – improves network latency.
CPU/GPU Priority Tweaks – ensures smoother performance.
Enable Service Tweaks – optimizes how system services are run.
Remove Preinstalled Bloatware – clears space and removes distractions.
Disable Unnecessary Startup Apps – boosts system boot speed.
Enable Long System Paths – supports deeper folder structures.
Disable Fullscreen Optimizations + Enable RAM Tweaks – improves game and system responsiveness.
Disable Windows PC Health Check
DirectX 11-12 Tweaks
Win32 Priority Separation Tweak

🔐 Privacy

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

🎨 Visual Tweaks

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

📦 Other

Remove Game Bar / Xbox DVR – eliminates background game-related services.
Clean Temp, Cache, Prefetch, Logs – frees up disk space and improves speed.
Scan for Adware (AdwCleaner) – detects and removes potentially unwanted software.
Clean WinSxS Folder – reduces size of the Windows component store.
Remove News & Interests / Widgets – removes taskbar widgets in Windows 10/11.
Tweak Unnecessary Services Behavior – disables or adjusts unused system services.
Show seconds in Taskbar clock
Enable detailed info startup/shutdown (Verbose Status)

⚙️ Expert Mode

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

💡 Useful

Switches	Description
`/auto`	will run in background default checked options
`/sillent`	will run in background default checked options but without END message
`/all`	will run in background ALL marked options by "Select All" Button
`/expert`	will run sillent ALL options + Expert options