Operation system not found Operation system not found - Hackintosh Mavericks - Hackintosh Jump to content

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I have a dell inspiron 7000 i7 u4500 gforce 750

In the bios i disable uefi boot and change it to legacy, sata operation ahci

When I try to boot from the USB it said operation system not found

Used a different stck still same problem

What to do?




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When you press F12 Does the USB drive shows up? Or just the harddrive and dvd/cd drive? And have you try different ports

Or if you have USB 3.0 try one of them ports

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I tried all all the ports with at without uefi' all the ports are usb3, same problem

I try to write 2 different USB one with win32 the other with transaction same problem the bios is reading the information but I think there is something I do wrong

Any other suggestions?

I heve to mention I have windows 8.1 but I created a different partition for the macos x

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So i tried all the ports (all the ports are usb3) 2 different USB one written with win32 the other with transmac with or without uefi enable same problem.

The bios can see the stick in all the cases but it sad operation system not found

Any other idea...if you have a phone and a time so I can call you...I'm from Romania if you are wiling to give me your phone


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instaled the latest bios A06 


Motherboard ID <DMI>

Motherboard Name Dell Inspiron 7537

CPU Type Mobile DualCore Intel Core i7-4500U, 3000 MHz (30 x 100)

North Bridge Intel Haswell-ULT IMC

BIOS Type Phoenix EFI

BIOS Version A06

Adapter String Intel® HD Graphics 4400

Device Description NVIDIA GeForce GT 750M

Realtek ALC283 @ Intel Lynx Point-LP PCH - High Definition Audio Controller PCI

Network Adapter Intel® Wireless-N 7260

Realtek RTL8168/8111 PCI-E Gigabit Ethernet Adapter PCI


i have the same issue with all the hackintosh i tried unibeast and after the unibeast start screen if i choose usb it just restarts the pc but with all the others like niresh or iatkos it sad operation sistem not found

i've replace the HDD with a empty hdd the same problems

i think is a motherboard issue with the uefi is just not letting me to boot 

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