Product key for My Windowns 8.1
Product key for My Windowns 8.1
You might try a tool named MicrosoftToolkit to retrieve your CD key if it's missing.
MS Toolkit is designed to help you access Windows. The essential code is stored in the laptop's BIOS, allowing only this device to utilize it.
Since Windows 8 was released, the product key is built into the motherboard. As long as you use the recovery drive on your laptop's hard drive, it will automatically fetch the key and turn on Windows. There’s no chance to use the key on a different computer.
At a tech place I worked, there was a tool that helped locate installed product keys for Microsoft programs and operating systems.
It was known as ProduKey. Uncertain if it functions on recent Windows systems.