Preinstalled WIndows 8 is gone after diskpart clean

[Cyikes]

At first, my problem is I can't reset, refresh or automatic repair my Windows 8. It said that Partition drive is missing and Windows is locked. Then I saw some info using CMD. Diskpart clean, recboot /fixMBR, /fixboot etc etc. after that. I have no OS. When I'm trying to boot. It said that no boot device found. No operating system installed in hd. I try to install windows 8 from CD (different product key) but it said that product key is not match because of my preinstalled windows 8. I try to make a legacy booy and MBR disk to install windows 7 and failed also. setup configuration cannot in windows hardware bla bla bla. I can't find nor install my Preinstalled Windows 8. Please help me 🙁

 

[basroil]

Sounds like you did something stupid and killed your install. Follow the instructions at http://windows.microsoft.com/en-us/windows-8/create-reset-refresh-media to reinstall windows.

IF the above does not work, you might be experiencing hard disk failure, in which case you need to replace it.

 

[Cyikes]

Sounds like you did something stupid and killed your install. Follow the instructions at http://windows.microsoft.com/en-us/windows-8/create-reset-refresh-media to reinstall windows.

IF the above does not work, you might be experiencing hard disk failure, in which case you need to replace it.

I tried that also but the thing is, I dont have the product key for that. when I'm trying to install that. Inserting product key windows is pop up. Do I need to replace my HD even if its working before I messed up? Its totally working but i want to reformat thats why I mess up with it. BTW if im not mistaken, when booting to UEFI. It said no Boot device found. No operating system installed in Hard Drive. Hard Drive (3f0). Some kind of HD error? But when I run that in diagnose F2. Its ok. I can see also my HD in Diskpart...