"Disk Boot Failure, Insert System Disk & Press Enter"
Most of computer users may have experienced this error message turning on a laptop or a desktop. It's a boot failure. Sometimes a failed CMOS battery may give rise to this problem. You need to resetting or replacing the battery, and then the problem will be solved. So check this at first, and make sure that there is no floppy disk, CD, DVD, or USB connecting to your computer. If it doesn't help, your MBR may be corrupted, and you need to do a system repair with a system disk, or this disk boot failure problem will always exist.
Fix "disk boot failure, insert system disk" error
Just as the message mentioned, you need a system disk to fix this disk boot failure issue. You can use Wondershare LiveBoot 2012, a bootable system disk that can help you fix this problem completely, and also remain your system without any data loss.
Now, follow the steps below to do what you need.
Step1. Create a bootable LiveBoot CD or USB
You'll get a interface as follow when you run Wondershare LiveBoot on your PC. Insert a blank CD/DVD or USB drive that you've prepared into the computer and click "Burn CD Now!" or "Burn USB Now", and that's all. The left work will be automatically finished by the program itself. What you need to know is if you don't have a burner installed on your computer, you can choose to burn with a USB drive, which doesn't need an extra burner. It's very easy.
Step2. Boot your computer from LiveBoot
Insert LiveBoot CD to your computer CD-ROM, or plug in LiveBoot USB drive, and start your computer. When the computer starts, press F12 to get into the Device Boot Menu. Select the USB CD-ROM Drive option to enter. Then you'll get the interface as follow, and choose to boot your computer from LiveBoot. Wondershare LiveBoot 2012 integrates with Microsoft WinPE 3.0 technology, and it's compatible with all Windows systems and computers.
Step3. Fix "disk boot failure, insert system disk" error
When the Windows begins, launch Wondershare LiveBoot, and turn to "Windows Recovery". Then choose "Boot Crash Solution" to fix your disk boot failure problem. In the description of symptoms, you problem belongs to "Type A error messages": Hard Disk Boot Failure. According to the solution, you can take the method 1 to repair your MBR or Boot Files to get your issue done.
After the recovery is finished, take out of the CD and reboot your computer. Then you'll find the message "Disk Boot Failure, Insert System Disk & Press Enter" has gone and your hard disk works properly now.
Additionally, this LiveBoot CD/USB also can help to solve other computer problems, such as blue screen, black screen, and boot file missing or corrupted, etc. Any imaginable computer crash can be rapidly fixed by it.