Windows 8 to 8.1 upgrade WITHOUT serial

THIS IS LEGAL
This is just to make it convenient for the user to upgrade to 8.1 without the need of serial until after it upgraded. This is to allow installation and update of 8.1.

Tutorial:
#) Inside the folder of the disc/usb go into WINDOWS 8.1: sources.

#) Once your in the sources folder, look for the file named "ei.cfg", if it doesnt exists that's okay. Either way continue to the next step.

#) Right click on desktop and create a notepad.txt document.
Inside of it paste this code:

Code:

[EditionID]
Professional
[Channel]
Retail
[VL]
0

(Assuming your upgrading to 8.1 proffesional, just replace info with your corresponding update.

#) Take the .txt file with the code pasted inside of it and rename it to: "ei.cfg", without quotes.

#) Take the ei.cfg file you just made, and put it into your Windows 8.1/sources/ Directory.

That's it!
Run installation/update and you shouldn't be prompted for serial to update/upgrade/install Windows 8.1.