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I cant install High sierra because disk is not shown and when I go to Disk Utility It says Disk Is Uninitialized. When I try to erase it, it says unable to write to the last block of the device. I had Lion running in the same disk before (and computer) but now the disk is empty but has no...

Hello, I hope this is the right place to post this. I've been looking on the webs like a mad man to find an answer to my problem but couldn't find a single answer that would fix it, so I came here to share it with you all. I have problems whit installing Sierra on my PC (which is compatible)...

Hi, I have a question. In step 4 of the installation guide, it says this: ​ Disk 1 is my USB :P So, my question is do I have to clear out Disk 0 completely to be able to dual-boot Windows and OS X? If not, what steps are required in order to make Windows and OS X boot together? P.S. Yes...