我正在用/用過的免費軟體

綜合防毒

• Microsoft Security Essentials
• 360衛士

加密軟件

• TrueCrypt

桌面工具

• VirtuaWin - Virtual Desktop Manager, support up to 4 desktop.

可攜式軟件

• Appetizer - Free application launcher, or dock, for Windows. It allows organizing your shortcuts and folders into a convenient dock.
• PortableApps - A Portable application manager and launcher for USB or Portal. Download more application from there.
• Cameyo - Application Virtualization, 綠色軟體製造機