I set up a dual boot on a 500 GB SSD. Cloned Windows 7 from a smaller SSD then installed Windows 8 on a second partition. It takes a full 60 seconds to reach the dual boot screen. It then loads very quickly. Here is what I've done to try and correct the problem: 1. Refreshed windows 8 2. removed all devices except keyboard and mouse 3. made sure all drivers were current 4. Updated the bios on my P8Z68-V PRO motherboard 6. replaced my MB battery I cloned Win 7 first then installed Win 8. My MB does not support safe boot. Microsoft can't tell me what's wrong. After making several suggestions they concluded it must be my battery. Replaced it and no change. Any ideas on how to fix?