You have misplaced that serial number for the registration of your computer and now you need to reinstall Windows. Fear not, for here is your salvation.
Unzip the file that you have downloaded and copy the file 'keyfinder.exe' to your desktop.
Step3
Launch the program.
Step4
You will then find the serial number or product license key of your operating system.
Tips & Warnings
This software can also find the license key of your Microsoft Office product should you lose the information as well and it is already installed on the computer