Free Open-Source Windows System Optimizer & Cleaner
Clean your system, completely uninstall apps, defrag drives, and update drivers.
| Tool | Description |
|---|---|
| Dashboard | System health overview at a glance. Scan for issues across drivers, software, and cleanup. |
| Drivers | Scan and update outdated drivers from 12+ major providers including Intel, NVIDIA, and Realtek. |
| Backup / Rollback | Create driver backups and system restore points. Easily rollback when needed. |
| Software Update | Keep your applications up to date via winget. Batch updates with progress tracking. |
| System Information | Detailed hardware and software information: OS, CPU, GPU, RAM, storage, BIOS, and more. |
| Uninstaller | Remove desktop and store apps with leftover file, folder, and registry cleanup. |
| Startup Manager | Manage startup items, scheduled tasks, and Windows services. Backup and restore configs. |
| System Cleanup | Clean 21 categories of temporary files, browser cache, Windows updates leftovers, and registry. |
| Duplicate Files | Content-hash based duplicate detection. Find and remove duplicate files to save space. |
| Disk Tools | Defragmentation with visual grid, secure file shredder, and free space wipe. |
| Browser Extensions | Manage extensions across Chrome, Edge, Firefox, Brave, Opera, and Vivaldi. |
| Network Optimizer | Optimize network adapters, DNS settings, and connection parameters for better performance. |
- Completely uninstall software and remove leftover registry keys and files
- Open-source Windows optimization tool 2026
- Safe, free alternative to commercial PC cleanup tools
- Portable and does not require installation
Download the latest release from GitHub Releases.
- Download
WinZenith-1.1.8-portable.zip - Extract to any folder
- Run
WinZenith.exeas Administrator
Note: Windows SmartScreen may show a warning when you first run the app. This is normal for new, unsigned applications. Click "More info" and then "Run anyway" to proceed.
- Windows 10 or Windows 11
- Java 17 or later (included in the portable package)
Have a question, found a bug, or want to suggest an improvement? We'd love to hear from you.
Send us an email at: winzenith_tools@yahoo.com
Free for use. See LICENSE.txt for details.
© 2026 WinZenith. Free for use.