Free Windows system maintenance tool with modular architecture, intelligent launcher system and automatic updates. PowerShell-based, Defender-optimized, open source.
The Hellion Power Tool is a modular Windows maintenance tool built on PowerShell. It provides system repair, cleanup, diagnostics and management functions in a single tool – from SFC/DISM scans to driver diagnostics and bloatware detection.
The tool is dual-compatible (PowerShell 5.1 and 7.x), features an intelligent launcher system with auto-updates, and is optimized for Windows Defender. Fully open source under CC BY-NC-SA 4.0.
18 standalone PowerShell modules loaded on demand.
SFC scan, DISM repair, CheckDisk and DLL integrity verification.
Hardware analysis, network tests, driver diagnostics and bluescreen analysis.
Automatic version check against GitHub with backup and rollback.
Runs on PowerShell 5.1 and 7.x without modifications.
Code patterns minimize false-positive detection by antivirus scanners.
Windows Defender may flag this tool as a false positive due to administrative PowerShell operations. The complete source code is available on GitHub. See DEFENDER-WHITELIST.md in the repository for details.
Use at your own risk. This tool is provided free of charge and without warranty. Always create a restore point before critical operations. Full disclaimer available in the repository (DISCLAIMER.md).
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