I turned on my laptop today and it started saying "BOOT Device not found Error 03F0 Hard Disk", I checked my BIOS Setup and it was in UEFI Mode, I tried to boot from CD/DVD in UEFI mode and got same message again.

So what I did!! I changed the mode to LEGACY and successfully booted my device and installed Win8. But after that My HP Envy M6 1188 is taking 3 to 4 minutes to load Win 8. So summing it up, On legacy mode, eveything is working fine except Win Loading Time. But if i choose UEFI Mode again, That black screen with same message appears again.

I have MBR Drive. I tried Bootrec.exe /fixmbr and all other commands that i found through searching on google but all in vain.

I am still in legacy mode but i think win 8 will work faster in UEFI Mode. I tried that EFI partition method but command said i have to convert my drive to GPT etc But i am wondering, my laptop was working fine a week ago with MBR drive and on UEFI Mode On. Any Suggestions!!!? DO I really have to convert my drive to GPT?


Yes. UEFI requires GPT to boot. Try downloading Partition Wizard bootable media and burn it to a CD, DVD, or flash drive. http://partitionwizard.com/bootable-flash-drive.html

It doesn't take long to complete the conversion.

Click here for a video on converting the drive to GPT: http://partitionwizard.com/video-help/convert-mbr-disk-to-gpt-disk/convert-mbr-disk-to-gpt-disk.html

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.