Hello Shubham

for Windows 8.x and Windows 10  You can download and use media from microsoft official site on your device and it will install correctly. In most cases you will not be asked for a product key during installation, the product key is included on the motherboard. However, after installation, the device will NOT contain the specialized drivers and software that came pre-installed from your manufacturer.

hope u like the answer 

have a charming day :-)