Hi DavorVuković,
I would like to know more information about the issue, so that we could help you further.
- Have you made any changes to the computer prior to this issue?
- Do you get any error code or error message?
- Do you have Windows 8 Installation Media?
- Are you able to boot to Desktop?
If you are not able to boot and if you do not have an installation media, then I would suggest you to try creating it from a different Windows 8 computer.
How to create installation media for a PC refresh or reset:
http://windows.microsoft.com/en-us/windows-8/create-reset-refresh-media
Once after creating an Installation Media, I would suggest you to try the following methods and check if it works for you.
Method 1:
Try performing Automatic Repair by booting from the Windows 8 Installation Media and check.
Follow the steps to perform Startup repair from Windows 8 Installation Media:
a. Insert media Installation Media and press F12 key and click on change default or other optionswhich is at the bottom of the screen.
b. In the next screen click on
troubleshoot option, this will display you different WinRE (Windows Recovery Environment) options to resolve issues with the computer when it is in no boot state.
c. Now Click on Automatic Repair, this will open up a Wizard which will automatically diagnose and repair issues with the computer startup.
Method 2:
If performing Automatic repair did not help, the perform System Restore and restore to a point before the issue started and check if it helps.
Follow the steps to perform system restore:
a. Insert media such as (DVD or flash drive) and press F12 key and click on change default or other optionswhich is at the bottom of the screen.
b. In the next screen click on
troubleshoot option, this will display you different WinRE (Windows Recovery Environment) options to resolve issues with the computer when it is in no boot state.
c. Now Click on System Restore, this will open up a Wizard and restore to a point when the computer was working fine.
Please reply with the status of the issue, so that we could help you in a better way.