System Information for Windows (SIW) is an excellent software program that gathers extensive detailed information about your Windows properties, hardware , settings and displays it in an extremely comprehensive manner. SIW is not only a system information viewer but it also comes with extra tools like password revealer, MAC address changer, Broadband Speed Test etc.,

System Information for Windows is a utility that displays detailed specifications for the following

1. Hardware Inventory: Motherboard, BIOS, CPU, Chipset, Devices, Video cards, Memory, Disk Devices, Dis Drives, SCSI devices, Ports and Printers.
2. Software Inventory: Operating System, OS updates, softwares and its hotfixes, Software keys and serials, installed codecs for media players, Open Files, users and services.

3. Network Tools and Information: Network Cards, Neighborhood scan, ping, traces, statistics, Open Ports and active network connections.

4. Sytem Processes: like CPU speed, Memory utilization, Page File usage and Network traffic.

The main windows of SIW looks like this

When I first opened it covered my PC full screen. However you can resize it later on. Everything for this software is present in a left side pan and top navigation bar. Here are the some of the functions explained.

Eureka : Eureka is a password revealer, it shows the hidden passwords behind the asterisks.
Mac Address Changer: If you need to change the MAC address then you can change it through MAC Address changer.

Broadband Speed Test: Takes to a external links where you can do a speed test of your broadband.

CPU and Memory Usage: Provides your with exclusive CPU and Memory usage details just like our Windows Task Manager.

SIW is free for home users and for commercial purposes you need to buy this software. The actual price of this software is $69 and file size is 3.04 MB which is very light. SIW runs on Windows XP/ 7 / Vista.