Never scan C:\Windows for duplicates. The Windows component store uses hard links and side-by-side assemblies. Deleting "duplicate" DLLs here will brick your OS.
When you download the Windows GUI version, you get a portable .exe file. There is no installer. This means:
To use it:
Note: Windows SmartScreen might warn you because the app isn’t widely signed yet. Click "More info" → "Run anyway" — the code is completely transparent and verifiable on GitHub. windows-czkawka-gui.zip
| Tool | Advantage | |------|------------| | dupeGuru | Good for music/photos but slower | | CCleaner | Duplicate finder is limited in free version | | Auslogics Duplicate Finder | User‑friendly but not open source | | Everything (voidtools) | Can find duplicates by size/name but not content hash |
Czkawka is generally faster and more thorough than most free alternatives.
Let’s get windows-czkawka-gui.zip running on your Windows 10 or Windows 11 machine. Never scan C:\Windows for duplicates
⚠️ Warning: Czkawka does not automatically keep one file per group. You must ensure at least one file remains unchecked. Use the “Select” menu to avoid deleting all copies.
For duplicates:
.exe;.dll).For Similar Images:
No tool is perfect. Czkawka does not:
For 99% of file-system clutter, though, it’s unbeatable.