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Hello folks!

Unfortunately Im having ​quite bad problems again! :( At the moment I dont know how to continue with this problem.

Some time ago I decided to test Windows 10 and for that I installed Windows 10 to my another hard drive using Bootcamp USB installer disk. When I used the OS, I used to disconnect my other hard drives. But today I felt lazy and decided to keep all connected. I booted to Clover menu and chose Windows Legacy HD 1. Everything working well so far.

After some time I decided to return ​to OSX. I chose my El Capitan partition and immediately I received the OSX error sign. I tried booting with verbose mode and got this error message:

Read error 0x12
Read error 0x12
Error loading kernel cache (0x12)
Boot failed, sleeping for 10 seconds before exiting...

I tried skipping caches and still the same error. 

I have tried to re-install the El Capitan using my USB installer. No luck, I still receive the error. I have tried to remove all the partitions, including efi with GParted and no luck...What should I do? I thought that the efi partition might be corrupted but even removing it using Gparted did not help. 

Currently Im using my Windows 10 hard drive. What should I do? Should I buy another hard drive? Is my hard disk broken?

All the help is much appreciated. ​ ​

 I was using Clover 3270.

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Not sure why you would use BootCamp to install Windows, since the hardware is vanilla PC parts.  Anyway I learned the hard way (with Yosemite install) that your life is way easier if you disconnect all drives except the one you are installing to; I did Windows first this time, then OS X; both on different drives.  Made my life much easier.

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