Find Windows Product Key with License Crawler
If you are planning to format your Computer, you must keep in hand, the serial number or product keys of all the products that you have installed so that you can install it again. Searching for serial keys may involve going through emails or manuals or you can simply use License Crawler. It is a free application which can retrieve Windows as well as other software Product Keys from the registry.
Just run the program and hit the ‘Start Search’ button. The program will scan the registry and will give you the list of the Applications along with the Product key it was able to find. As long as a software is storing its Product Key in the registry, it will be able to find. It supports a wide range of Software ranging from Windows 95 to Windows Vista. You will be able to retrieve the Serial Keys of popular software like Nero, Office etc.
The program is free as well as portable. It requires no installation and can be run directly on any system. It runs on all the version of Windows.