Hi TalShaked,
Thank you for posting your query in Microsoft Community.
In order to help you better please provide us the following information:
1) Did you make any recent changes to your computer?
You said that your computer works fine in safe mode, this means that it is the issue with some third party software, drive or any service.
To fix this issue you can follow these steps:
Method 1: Perform Clean Boot.
To help troubleshoot the issue, you can start Windows 8 by using a minimal set of drivers and startup programs. This kind of startup is known as a "clean boot." A clean boot helps eliminate software conflicts.
http://support.microsoft.com/kb/929135
important: Reset the computer to start as usual.
Note: After you have finished troubleshooting, follow these steps to boot to normal startup.
a) Press the ‘Windows + R’ key on the keyboard.
b) In the ‘Run’ windows type ’MSCONFIG’ and click ‘Ok’.
c) On the ‘General’ tab, click the ‘Normal Startup’ option, and then click ‘OK’.
d) When you are prompted to restart the computer, click ‘Restart’.
Method 2: Method 2:
Automatic Repair" to repair startup problems
a. Boot using Windows 8 Installation disk and perform startup repair.
b. Insert the disk into DVD drive and restart the computer.
c. Press F12 key (typically this is F12, but it can differ between computer manufacturers) and choose the drive that you inserted the installation media into.
d. Once the Windows Setup window appears click
Next.
e. Click on Repair your computer.
f. Click on Troubleshoot and then select Advanced Options.
g. Click on Automatic repair.
h. Follow the on-screen instructions and finish the repair.
For any further Windows related assistance feel free to contact us.
Thank you for Contacting Microsoft Answers, please reply with the status of the issue.
