System Spec is a Portable System Information Tool created by Alex Nolan. This free portable utility provides detailed system specification and information about the Hardware and Software Installed on the PC it is run from.
Everest Home Edition is a Portable and Free System Information Utility created by FinalWire Ltd (Lavalys). Much like SIW, it can be used to display information regarding a PC's system hardware without opening the case (useful for diagnostics and upgrading).
Spec Check is a Free and Portable System Information Utility or tool created by Matthew Laverack. It can be used to display information about a computers hardware and software.
Speccy is a Portable System Information Tool. It can be used to quickly obtain and display detailed specifications or specs of the system hardware and operating system installed on a computer.