explaingit

hellzerg/optimizer

★ 18,165C#Audience · vibe coderComplexity · 2/5MaintainedLicenseSetup · easy

TLDR

Windows utility to improve privacy and security by disabling telemetry, removing bloatware, and applying system tweaks through a single interface.

Mindmap

mindmap
  root((Optimizer))
    What it does
      Disable telemetry
      Remove bloatware
      Edit system settings
      Clean disk and cache
    Features
      DNS management
      Hosts file editor
      Process locker tool
      Hardware inspector
    Configuration
      24 languages
      Command-line options
      Silent deployment mode
    Compatibility
      Windows 7 to 11
      Windows Server
      .NET Framework 4.8.1

Things people build with this

USE CASE 1

Harden privacy on a fresh Windows installation by disabling telemetry and data collection in one go.

USE CASE 2

Remove unwanted startup programs and built-in Windows apps to speed up your PC.

USE CASE 3

Automate system hardening across multiple machines using silent deployment mode with a template file.

USE CASE 4

Manage DNS settings and flush cache without opening multiple Windows settings panels.

Tech stack

C#.NET Framework 4.8.1

Getting it running

Difficulty · easy Time to first run · 5min
Use it freely, but any project you distribute that includes this code must also be GPL-licensed and open source.

In plain English

Optimizer is a Windows utility designed to improve privacy and security on a PC, particularly useful after a fresh installation of Windows. It gives you a single interface to apply a large number of system tweaks that would otherwise require editing the registry, hunting through settings menus, or running separate tools. Key things it can do include disabling Windows telemetry and data-collection features, turning off Cortana, stopping automatic Windows updates, removing unwanted startup programs, editing the hosts file (which controls how your computer resolves website addresses), changing your DNS server, flushing the DNS cache, uninstalling built-in Windows apps, cleaning up your system drive and browser profiles, and inspecting hardware. It also has a tool for identifying processes that are locking files you want to delete. The tool supports 24 languages and works on Windows 7 through 11, as well as Windows Server editions. It can be run silently using a template file for automated deployments, and has a range of command-line options. It requires the .NET Framework 4.8.1 to run. Note that this project is now deprecated, the author has released a successor called OptimizerNXT.

Copy-paste prompts

Prompt 1
How do I use Optimizer to disable Windows telemetry and Cortana on a fresh Windows 11 install?
Prompt 2
Show me how to create a template file for Optimizer so I can deploy it silently across multiple PCs.
Prompt 3
What command-line options does Optimizer support for automating system tweaks?
Prompt 4
How do I use Optimizer's process locker tool to find what's preventing me from deleting a file?
Prompt 5
Can I use Optimizer on Windows Server, and what are the main privacy tweaks it applies?
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Generated 2026-05-18 · Model: sonnet-4-6 · Verify against the repo before relying on details.