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Cat-System

🐾 Cat-System v4.1

By: Tc4dy  |  Platform: Windows 10/11  |  Language: PowerShell 5.1 / 7.x  |  Requires: Administrator


Cat-System is a modular Windows optimization tool. Each module runs independently, all changes are logged, and everything can be reverted with a single command. | Single File & Moduler Mode


Modules

Module What it does
🛡️ Ghost Protocol Disables telemetry, ad tracking, Bing search in Start, location, Activity History and consumer features — also blocks telemetry hosts, disables scheduled tasks and stops diagnostic services
⚡ Sculptor Engine Throttles background processes, activates High Performance power plan, tunes memory settings
🚀 Net Booster Flushes DNS cache, resets Winsock/TCP stack, configures TCP parameters and DNS cache TTL
🧹 Browser Cleaner Wipes cache, cookies and history for Chrome, Edge, Firefox, Opera and Brave
⚙️ Startup Manager Lists, adds and removes startup entries from both Registry and Startup folder
🧹 System Cleaner Clears temp folders, Windows logs and Prefetch cache — also runs DISM and Storage Sense
⏪ Rollback Reverts every registry, file, scheduled task and hosts change made during the session

Cat-System-Icon

🔨 Build

Requirements:

  • Windows 10 or 11
  • PowerShell 5.1 (built-in) or PowerShell 7.x
  • Administrator privileges
git clone https://github.com/tc4dy/Cat-System.git
cd Cat-System

# Run directly
.\Start-CatSystem.ps1

# Or set execution policy for the current session
Set-ExecutionPolicy -Scope Process Bypass -Force
.\Start-CatSystem.ps1

For the single-file portable version, run CatSystem.ps1 from any directory — no installation required.

Always run as Administrator — registry and system service access requires elevated privileges.


🚀 Usage

  1. Right-click Start-CatSystem.ps1 → Run with PowerShell (or launch from an elevated terminal)
  2. Pick a module number from the menu
  3. Each module measures a benchmark before and after, and writes everything to CatSystem_Log.txt
  4. Run [7] Rollback at any time to undo all changes

🔒 Rollback & Safety

Every registry value, file, scheduled task and hosts entry is backed up to CatSystem_Rollback/ before anything is touched. The Rollback module restores all of them in one shot. Hosts modifications are tracked with begin/end markers, so only Cat-System's own block is removed on rollback — not the entire file.


📋 Notes

  • Net Booster and Sculptor Engine require a restart for some changes to apply
  • Close browsers before running Browser Cleaner
  • DISM cleanup can take a few minutes depending on the WinSxS store size
  • All registry tweaks go through the Group Policy layer (Software\Policies) — system-wide and persistent
  • Rollback only covers changes made during the current session; clearing the backup folder makes them permanent

Built by Tc4dy — modular architecture, surgical rollback, zero dependencies beyond PowerShell

About

Cat-System is a modular Windows 10/11 optimizer for privacy hardening, performance sculpting, and network tuning. Ships either as a fully modular Core/Helpers/Modules architecture or as a single portable PowerShell script. Registry, file, task, and hosts changes are backed up for rollback.

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