SIW (System Information for Windows) Portable

SIW is an advanced System Information for Windows tool that gathers detailed information about your system properties and settings and displays it in an extremely comprehensible manner. SIW is freeware for personal use only.

The system information is divided into few major categories:
Software Inventory: Operating System, Installed Software and Hotfixes, Processes, Services, Users, Open Files, System Uptime, Installed Codecs, Software Licenses (Product Keys / Serial Numbers / CD Key), Passwords Recovery.
Hardware Inventory: Motherboard, CPU, Sensors, BIOS, chipset, PCI/AGP, USB and ISA/PnP Devices, Memory, Video Card, Monitor, Disk Drives, CD/DVD Devices, SCSI Devices, S.M.A.R.T., Ports, Printers.
Network Information: Network Cards, Network Shares, currently active Network Connections, Open Ports.
Network Tools: MAC Address Changer, Neighborhood Scan, Ping, Trace, Statistics
Miscellaneous Tools: Eureka! (Reveal lost passwords hidden behind asterisks), Monitor Test, Shutdown / Restart.
Real-time monitors: CPU, Memory, Page File usage and Network Traffic.