What driver have you tried and Win 8 version is this?
I have tried drivers from asrock,intel and asus websites,
With all this versions
And the Windows version is Pro x64 9200.
It sounds as if you've only attempted installing 64 bit drivers. Are you sure you're using a 64 bit version of Win8, and not 32? You can check this by doing the following; Start -> right click Computer -> Properties. Check the system properties under Operating System, and it should say whether you have 64 or 32.
Obv i know it, its x64 off course!
What error codes or messages are you getting while installing the Intel HD Graphics drivers?
What version of BIOS do you have on your Z77 Extreme 6? 2.20 is the latest on the ASRock support site.
Have you contacted ASRock support for information on Windows 8 support on the Z77 Extreme 6?