Installing Windows 8.x without Product Key

Yes and No
After some research and testing on both asus and samsung laptop, i think i have found a simple solution
First you have to have to modify the ei.cfg file in install media

1. Enable OEM install, you should be able to pick both 8.x and 8.x Pro

First of all you will need install media

copy and paste

 [EditionID]
 [Channel]
 OEM 
 [VL]
 0

into \sources\ei.cfg of the install media

2. Now the fun part

1. Install Windows 8.x be sure to pick the right edition that came with your pc or laptop
2. Download & Run Windows 8 Product Key Viewer 1.4.7d from Softpedia
3. Check the MSDM KEY checkbox, and copy the key
4. Win + R
5. Then type changepk & Enter
6. Paste in the key