- Sysinternals suite to monitor and tweak the system
- PSTools
- Classic Shell to customize Start Menu (even in Windows 8+) etc.
- zbar for multi-monitor taskbar
- Unlocker to find which programs prevent a file from being deleted
- Eraser to securely wipe a file, folder, disk
- PDFill PDF Tools for batch operations on PDFs
- SumatraPDF - fast PDF viewer
- PDF XChange - PDF viewer with basic editing options (adding text, annotations etc)
- Briss for cropping PDFs
- Agent Ransack to do fast full-text search on disk
- Total Commander to manage files and folders
- Free Download Manager to quickly download big files from multiple mirrors at once
- f.lux to adjust colors of the screen