Key Info

Key Info is a feather-light application that enables you to seamlessly retrieve the product keys of your installed Microsoft products, view installed software, as well as change OEM information.
This type of software comes in handy if you have lost or misplaced your OS serial number and intend to reinstall it. It doesn't include complicated options or customization preferences, making it accessible to all kinds of users.

No setup required, besides .NET Framework

The entire tool's packed in a single .exe file that can be saved to a preferred directory on the disk or copied to a removable storage unit, in order to run Key Info on any PC with as little effort as possible.
It doesn't change system registry settings or create files on the disk without your permission. On the other hand, you must have .NET Framework installed, since it was developed with the aid of this platform. Administrative privileges are required for viewing installed software.

View Windows and other Microsoft product keys

As far as the interface is concerned, the application adopts a simple window with a plain and simple structure, where you can view and change the registered owner and organization, as well as view Windows information with the product name and key.
Provided that you have launched the application with elevated rights, you can obtain a list with installed software products and their serial numbers, provided that they belong to Microsoft.

Evaluation and conclusion

The software utility worked smoothly in our tests, without causing the OS to hang, crash or prompt errors. Unsurprisingly from such as compact program, it had minimal impact on the computer's performance, running on low CPU and RAM.
To sum it up, Key Info comes in handy whenever you want to get hold of your Windows serial key and the product numbers of other Microsoft products you have installed.